ICD↔CPT crosswalk
CPT 00921: ICD-10 codes that support medical necessity
These ICD-10-CM diagnoses support medical necessity for CPT 00921 under Medicare coverage policies (LCDs, NCDs, and Billing & Coding articles). Billing CPT 00921 with a diagnosis that isn't covered typically denies as CARC 50 — not medically necessary.
National approximation. Coverage varies by MAC and state — confirm against the specific LCD/NCD and article that applies to your jurisdiction and date of service.
| ICD-10 | Description |
|---|---|
| A40.3 | Sepsis due to Streptococcus pneumoniae |
| A40.9 | Streptococcal sepsis, unspecified |
| A41.01 | Sepsis due to Methicillin susceptible Staphylococcus aureus |
| A41.02 | Sepsis due to Methicillin resistant Staphylococcus aureus |
| A41.1 | Sepsis due to other specified staphylococcus |
| A41.2 | Sepsis due to unspecified staphylococcus |
| A41.3 | Sepsis due to Hemophilus influenzae |
| A41.4 | Sepsis due to anaerobes |
| A41.50 | Gram-negative sepsis, unspecified |
| A41.51 | Sepsis due to Escherichia coli [E. coli] |
| A41.52 | Sepsis due to Pseudomonas |
| A41.53 | Sepsis due to Serratia |
| A41.54 | Sepsis due to Acinetobacter baumannii |
| A41.59 | Other Gram-negative sepsis |
| A41.89 | Other specified sepsis |
| A41.9 | Sepsis, unspecified organism |
| E00.0 | Congenital iodine-deficiency syndrome, neurological type |
| E00.1 | Congenital iodine-deficiency syndrome, myxedematous type |
| E00.2 | Congenital iodine-deficiency syndrome, mixed type |
| E00.9 | Congenital iodine-deficiency syndrome, unspecified |
| E01.8 | Other iodine-deficiency related thyroid disorders and allied conditions |
| E02 | Subclinical iodine-deficiency hypothyroidism |
| E03.0 | Congenital hypothyroidism with diffuse goiter |
| E03.1 | Congenital hypothyroidism without goiter |
| E03.2 | Hypothyroidism due to medicaments and other exogenous substances |
| E03.3 | Postinfectious hypothyroidism |
| E03.8 | Other specified hypothyroidism |
| E03.9 | Hypothyroidism, unspecified |
| E05.00 | Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm |
| E05.01 | Thyrotoxicosis with diffuse goiter with thyrotoxic crisis or storm |
| E05.10 | Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm |
| E05.11 | Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm |
| E05.20 | Thyrotoxicosis with toxic multinodular goiter without thyrotoxic crisis or storm |
| E05.21 | Thyrotoxicosis with toxic multinodular goiter with thyrotoxic crisis or storm |
| E05.30 | Thyrotoxicosis from ectopic thyroid tissue without thyrotoxic crisis or storm |
| E05.31 | Thyrotoxicosis from ectopic thyroid tissue with thyrotoxic crisis or storm |
| E05.40 | Thyrotoxicosis factitia without thyrotoxic crisis or storm |
| E05.41 | Thyrotoxicosis factitia with thyrotoxic crisis or storm |
| E05.80 | Other thyrotoxicosis without thyrotoxic crisis or storm |
| E05.81 | Other thyrotoxicosis with thyrotoxic crisis or storm |
| E05.90 | Thyrotoxicosis, unspecified without thyrotoxic crisis or storm |
| E05.91 | Thyrotoxicosis, unspecified with thyrotoxic crisis or storm |
| E10.10 | Type 1 diabetes mellitus with ketoacidosis without coma |
| E10.11 | Type 1 diabetes mellitus with ketoacidosis with coma |
| E10.21 | Type 1 diabetes mellitus with diabetic nephropathy |
| E10.22 | Type 1 diabetes mellitus with diabetic chronic kidney disease |
| E10.29 | Type 1 diabetes mellitus with other diabetic kidney complication |
| E10.311 | Type 1 diabetes mellitus with unspecified diabetic retinopathy with macular edema |
| E10.319 | Type 1 diabetes mellitus with unspecified diabetic retinopathy without macular edema |
| E10.36 | Type 1 diabetes mellitus with diabetic cataract |
| E10.39 | Type 1 diabetes mellitus with other diabetic ophthalmic complication |
| E10.40 | Type 1 diabetes mellitus with diabetic neuropathy, unspecified |
| E10.49 | Type 1 diabetes mellitus with other diabetic neurological complication |
| E10.51 | Type 1 diabetes mellitus with diabetic peripheral angiopathy without gangrene |
| E10.59 | Type 1 diabetes mellitus with other circulatory complications |
| E10.618 | Type 1 diabetes mellitus with other diabetic arthropathy |
| E10.620 | Type 1 diabetes mellitus with diabetic dermatitis |
| E10.621 | Type 1 diabetes mellitus with foot ulcer |
| E10.622 | Type 1 diabetes mellitus with other skin ulcer |
| E10.628 | Type 1 diabetes mellitus with other skin complications |
| E10.630 | Type 1 diabetes mellitus with periodontal disease |
| E10.638 | Type 1 diabetes mellitus with other oral complications |
| E10.641 | Type 1 diabetes mellitus with hypoglycemia with coma |
| E10.649 | Type 1 diabetes mellitus with hypoglycemia without coma |
| E10.65 | Type 1 diabetes mellitus with hyperglycemia |
| E10.69 | Type 1 diabetes mellitus with other specified complication |
| E10.8 | Type 1 diabetes mellitus with unspecified complications |
| E10.9 | Type 1 diabetes mellitus without complications |
| E11.00 | Type 2 diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC) |
| E11.01 | Type 2 diabetes mellitus with hyperosmolarity with coma |
| E11.10 | Type 2 diabetes mellitus with ketoacidosis without coma |
| E11.11 | Type 2 diabetes mellitus with ketoacidosis with coma |
| E11.21 | Type 2 diabetes mellitus with diabetic nephropathy |
| E11.22 | Type 2 diabetes mellitus with diabetic chronic kidney disease |
| E11.29 | Type 2 diabetes mellitus with other diabetic kidney complication |
| E11.311 | Type 2 diabetes mellitus with unspecified diabetic retinopathy with macular edema |
| E11.319 | Type 2 diabetes mellitus with unspecified diabetic retinopathy without macular edema |
| E11.36 | Type 2 diabetes mellitus with diabetic cataract |
| E11.39 | Type 2 diabetes mellitus with other diabetic ophthalmic complication |
| E11.40 | Type 2 diabetes mellitus with diabetic neuropathy, unspecified |
| E11.49 | Type 2 diabetes mellitus with other diabetic neurological complication |
| E11.51 | Type 2 diabetes mellitus with diabetic peripheral angiopathy without gangrene |
| E11.59 | Type 2 diabetes mellitus with other circulatory complications |
| E11.618 | Type 2 diabetes mellitus with other diabetic arthropathy |
| E11.620 | Type 2 diabetes mellitus with diabetic dermatitis |
| E11.621 | Type 2 diabetes mellitus with foot ulcer |
| E11.622 | Type 2 diabetes mellitus with other skin ulcer |
| E11.628 | Type 2 diabetes mellitus with other skin complications |
| E11.630 | Type 2 diabetes mellitus with periodontal disease |
| E11.638 | Type 2 diabetes mellitus with other oral complications |
| E11.641 | Type 2 diabetes mellitus with hypoglycemia with coma |
| E11.649 | Type 2 diabetes mellitus with hypoglycemia without coma |
| E11.65 | Type 2 diabetes mellitus with hyperglycemia |
| E11.69 | Type 2 diabetes mellitus with other specified complication |
| E11.8 | Type 2 diabetes mellitus with unspecified complications |
| E11.9 | Type 2 diabetes mellitus without complications |
| E13.00 | Other specified diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC) |
| E13.01 | Other specified diabetes mellitus with hyperosmolarity with coma |
| E13.10 | Other specified diabetes mellitus with ketoacidosis without coma |
| E13.11 | Other specified diabetes mellitus with ketoacidosis with coma |
| E13.21 | Other specified diabetes mellitus with diabetic nephropathy |
| E13.22 | Other specified diabetes mellitus with diabetic chronic kidney disease |
| E13.29 | Other specified diabetes mellitus with other diabetic kidney complication |
| E13.39 | Other specified diabetes mellitus with other diabetic ophthalmic complication |
| E13.40 | Other specified diabetes mellitus with diabetic neuropathy, unspecified |
| E13.49 | Other specified diabetes mellitus with other diabetic neurological complication |
| E13.59 | Other specified diabetes mellitus with other circulatory complications |
| E13.620 | Other specified diabetes mellitus with diabetic dermatitis |
| E13.621 | Other specified diabetes mellitus with foot ulcer |
| E13.622 | Other specified diabetes mellitus with other skin ulcer |
| E13.628 | Other specified diabetes mellitus with other skin complications |
| E13.638 | Other specified diabetes mellitus with other oral complications |
| E13.641 | Other specified diabetes mellitus with hypoglycemia with coma |
| E13.649 | Other specified diabetes mellitus with hypoglycemia without coma |
| E13.65 | Other specified diabetes mellitus with hyperglycemia |
| E13.69 | Other specified diabetes mellitus with other specified complication |
| E13.8 | Other specified diabetes mellitus with unspecified complications |
| E13.9 | Other specified diabetes mellitus without complications |
| E15 | Nondiabetic hypoglycemic coma |
| E16.0 | Drug-induced hypoglycemia without coma |
| E16.1 | Other hypoglycemia |
| E16.2 | Hypoglycemia, unspecified |
| E16.3 | Increased secretion of glucagon |
| E16.4 | Increased secretion of gastrin |
| E16.8 | Other specified disorders of pancreatic internal secretion |
| E16.9 | Disorder of pancreatic internal secretion, unspecified |
| E16.A1 | Hypoglycemia level 1 |
| E16.A2 | Hypoglycemia level 2 |
| E16.A3 | Hypoglycemia level 3 |
| E20.0 | Idiopathic hypoparathyroidism |
| E20.810 | Autosomal dominant hypocalcemia |
| E20.811 | Secondary hypoparathyroidism in diseases classified elsewhere |
| E20.812 | Autoimmune hypoparathyroidism |
| E20.818 | Other specified hypoparathyroidism due to impaired parathyroid hormone secretion |
| E20.89 | Other specified hypoparathyroidism |
| E20.9 | Hypoparathyroidism, unspecified |
| E21.0 | Primary hyperparathyroidism |
| E21.1 | Secondary hyperparathyroidism, not elsewhere classified |
| E21.2 | Other hyperparathyroidism |
| E21.3 | Hyperparathyroidism, unspecified |
| E21.4 | Other specified disorders of parathyroid gland |
| E21.5 | Disorder of parathyroid gland, unspecified |
| E22.0 | Acromegaly and pituitary gigantism |
| E22.1 | Hyperprolactinemia |
| E22.2 | Syndrome of inappropriate secretion of antidiuretic hormone |
| E22.8 | Other hyperfunction of pituitary gland |
| E22.9 | Hyperfunction of pituitary gland, unspecified |
| E23.0 | Hypopituitarism |
| E23.1 | Drug-induced hypopituitarism |
| E23.2 | Diabetes insipidus |
| E23.3 | Hypothalamic dysfunction, not elsewhere classified |
| E23.6 | Other disorders of pituitary gland |
| E23.7 | Disorder of pituitary gland, unspecified |
| E24.0 | Pituitary-dependent Cushing's disease |
| E24.1 | Nelson's syndrome |
| E24.2 | Drug-induced Cushing's syndrome |
| E24.3 | Ectopic ACTH syndrome |
| E24.4 | Alcohol-induced pseudo-Cushing's syndrome |
| E24.8 | Other Cushing's syndrome |
| E24.9 | Cushing's syndrome, unspecified |
| E25.0 | Congenital adrenogenital disorders associated with enzyme deficiency |
| E25.8 | Other adrenogenital disorders |
| E25.9 | Adrenogenital disorder, unspecified |
| E26.01 | Conn's syndrome |
| E26.02 | Glucocorticoid-remediable aldosteronism |
| E26.09 | Other primary hyperaldosteronism |
| E26.1 | Secondary hyperaldosteronism |
| E26.81 | Bartter's syndrome |
| E26.89 | Other hyperaldosteronism |
| E26.9 | Hyperaldosteronism, unspecified |
| E27.0 | Other adrenocortical overactivity |
| E27.1 | Primary adrenocortical insufficiency |
| E27.2 | Addisonian crisis |
| E27.3 | Drug-induced adrenocortical insufficiency |
| E27.40 | Unspecified adrenocortical insufficiency |
| E27.49 | Other adrenocortical insufficiency |
| E27.5 | Adrenomedullary hyperfunction |
| E27.8 | Other specified disorders of adrenal gland |
| E27.9 | Disorder of adrenal gland, unspecified |
| E32.0 | Persistent hyperplasia of thymus |
| E32.1 | Abscess of thymus |
| E32.8 | Other diseases of thymus |
| E32.9 | Disease of thymus, unspecified |
| E34.4 | Constitutional tall stature |
| E35 | Disorders of endocrine glands in diseases classified elsewhere |
| E66.01 | Morbid (severe) obesity due to excess calories |
| E66.2 | Morbid (severe) obesity with alveolar hypoventilation |
| E66.813 | Obesity, class 3 |
| E84.0 | Cystic fibrosis with pulmonary manifestations |
| E84.11 | Meconium ileus in cystic fibrosis |
| E84.9 | Cystic fibrosis, unspecified |
| E86.0 | Dehydration |
| E86.1 | Hypovolemia |
| E86.9 | Volume depletion, unspecified |
| E87.0 | Hyperosmolality and hypernatremia |
| E87.1 | Hypo-osmolality and hyponatremia |
| E87.20 | Acidosis, unspecified |
| E87.21 | Acute metabolic acidosis |
| E87.22 | Chronic metabolic acidosis |
| E87.29 | Other acidosis |
| E87.3 | Alkalosis |
| E87.4 | Mixed disorder of acid-base balance |
| E87.5 | Hyperkalemia |
| E87.6 | Hypokalemia |
| E87.70 | Fluid overload, unspecified |
| E87.71 | Transfusion associated circulatory overload |
| E87.79 | Other fluid overload |
| E87.8 | Other disorders of electrolyte and fluid balance, not elsewhere classified |
| E89.0 | Postprocedural hypothyroidism |
| E89.1 | Postprocedural hypoinsulinemia |
| E89.2 | Postprocedural hypoparathyroidism |
| E89.3 | Postprocedural hypopituitarism |
| E89.6 | Postprocedural adrenocortical (-medullary) hypofunction |
| F01.50 | Vascular dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F01.511 | Vascular dementia, unspecified severity, with agitation |
| F01.518 | Vascular dementia, unspecified severity, with other behavioral disturbance |
| F01.52 | Vascular dementia, unspecified severity, with psychotic disturbance |
| F01.53 | Vascular dementia, unspecified severity, with mood disturbance |
| F01.54 | Vascular dementia, unspecified severity, with anxiety |
| F01.A0 | Vascular dementia, mild, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F01.A11 | Vascular dementia, mild, with agitation |
| F01.A18 | Vascular dementia, mild, with other behavioral disturbance |
| F01.A2 | Vascular dementia, mild, with psychotic disturbance |
| F01.A3 | Vascular dementia, mild, with mood disturbance |
| F01.A4 | Vascular dementia, mild, with anxiety |
| F01.B0 | Vascular dementia, moderate, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F01.B11 | Vascular dementia, moderate, with agitation |
| F01.B18 | Vascular dementia, moderate, with other behavioral disturbance |
| F01.B2 | Vascular dementia, moderate, with psychotic disturbance |
| F01.B3 | Vascular dementia, moderate, with mood disturbance |
| F01.B4 | Vascular dementia, moderate, with anxiety |
| F01.C0 | Vascular dementia, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F01.C11 | Vascular dementia, severe, with agitation |
| F01.C18 | Vascular dementia, severe, with other behavioral disturbance |
| F01.C2 | Vascular dementia, severe, with psychotic disturbance |
| F01.C3 | Vascular dementia, severe, with mood disturbance |
| F01.C4 | Vascular dementia, severe, with anxiety |
| F02.80 | Dementia in other diseases classified elsewhere, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F02.811 | Dementia in other diseases classified elsewhere, unspecified severity, with agitation |
| F02.818 | Dementia in other diseases classified elsewhere, unspecified severity, with other behavioral disturbance |
| F02.82 | Dementia in other diseases classified elsewhere, unspecified severity, with psychotic disturbance |
| F02.83 | Dementia in other diseases classified elsewhere, unspecified severity, with mood disturbance |
| F02.84 | Dementia in other diseases classified elsewhere, unspecified severity, with anxiety |
| F02.A0 | Dementia in other diseases classified elsewhere, mild, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F02.A11 | Dementia in other diseases classified elsewhere, mild, with agitation |
| F02.A18 | Dementia in other diseases classified elsewhere, mild, with other behavioral disturbance |
| F02.A2 | Dementia in other diseases classified elsewhere, mild, with psychotic disturbance |
| F02.A3 | Dementia in other diseases classified elsewhere, mild, with mood disturbance |
| F02.A4 | Dementia in other diseases classified elsewhere, mild, with anxiety |
| F02.B0 | Dementia in other diseases classified elsewhere, moderate, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F02.B11 | Dementia in other diseases classified elsewhere, moderate, with agitation |
| F02.B18 | Dementia in other diseases classified elsewhere, moderate, with other behavioral disturbance |
| F02.B2 | Dementia in other diseases classified elsewhere, moderate, with psychotic disturbance |
| F02.B3 | Dementia in other diseases classified elsewhere, moderate, with mood disturbance |
| F02.B4 | Dementia in other diseases classified elsewhere, moderate, with anxiety |
| F02.C0 | Dementia in other diseases classified elsewhere, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F02.C11 | Dementia in other diseases classified elsewhere, severe, with agitation |
| F02.C18 | Dementia in other diseases classified elsewhere, severe, with other behavioral disturbance |
| F02.C2 | Dementia in other diseases classified elsewhere, severe, with psychotic disturbance |
| F02.C3 | Dementia in other diseases classified elsewhere, severe, with mood disturbance |
| F02.C4 | Dementia in other diseases classified elsewhere, severe, with anxiety |
| F03.90 | Unspecified dementia, unspecified severity, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F03.911 | Unspecified dementia, unspecified severity, with agitation |
| F03.918 | Unspecified dementia, unspecified severity, with other behavioral disturbance |
| F03.92 | Unspecified dementia, unspecified severity, with psychotic disturbance |
| F03.93 | Unspecified dementia, unspecified severity, with mood disturbance |
| F03.94 | Unspecified dementia, unspecified severity, with anxiety |
| F03.A0 | Unspecified dementia, mild, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F03.A11 | Unspecified dementia, mild, with agitation |
| F03.A18 | Unspecified dementia, mild, with other behavioral disturbance |
| F03.A2 | Unspecified dementia, mild, with psychotic disturbance |
| F03.A3 | Unspecified dementia, mild, with mood disturbance |
| F03.A4 | Unspecified dementia, mild, with anxiety |
| F03.B0 | Unspecified dementia, moderate, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F03.B11 | Unspecified dementia, moderate, with agitation |
| F03.B18 | Unspecified dementia, moderate, with other behavioral disturbance |
| F03.B2 | Unspecified dementia, moderate, with psychotic disturbance |
| F03.B3 | Unspecified dementia, moderate, with mood disturbance |
| F03.B4 | Unspecified dementia, moderate, with anxiety |
| F03.C0 | Unspecified dementia, severe, without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety |
| F03.C11 | Unspecified dementia, severe, with agitation |
| F03.C18 | Unspecified dementia, severe, with other behavioral disturbance |
| F03.C2 | Unspecified dementia, severe, with psychotic disturbance |
| F03.C3 | Unspecified dementia, severe, with mood disturbance |
| F03.C4 | Unspecified dementia, severe, with anxiety |
| F04 | Amnestic disorder due to known physiological condition |
| F05 | Delirium due to known physiological condition |
| F06.0 | Psychotic disorder with hallucinations due to known physiological condition |
| F06.1 | Catatonic disorder due to known physiological condition |
| F06.2 | Psychotic disorder with delusions due to known physiological condition |
| F06.30 | Mood disorder due to known physiological condition, unspecified |
| F06.31 | Mood disorder due to known physiological condition with depressive features |
| F06.32 | Mood disorder due to known physiological condition with major depressive-like episode |
| F06.33 | Mood disorder due to known physiological condition with manic features |
| F06.34 | Mood disorder due to known physiological condition with mixed features |
| F06.4 | Anxiety disorder due to known physiological condition |
| F06.8 | Other specified mental disorders due to known physiological condition |
| F10.10 | Alcohol abuse, uncomplicated |
| F10.120 | Alcohol abuse with intoxication, uncomplicated |
| F10.121 | Alcohol abuse with intoxication delirium |
| F10.129 | Alcohol abuse with intoxication, unspecified |
| F10.14 | Alcohol abuse with alcohol-induced mood disorder |
| F10.150 | Alcohol abuse with alcohol-induced psychotic disorder with delusions |
| F10.151 | Alcohol abuse with alcohol-induced psychotic disorder with hallucinations |
| F10.159 | Alcohol abuse with alcohol-induced psychotic disorder, unspecified |
| F10.180 | Alcohol abuse with alcohol-induced anxiety disorder |
| F10.181 | Alcohol abuse with alcohol-induced sexual dysfunction |
| F10.188 | Alcohol abuse with other alcohol-induced disorder |
| F10.19 | Alcohol abuse with unspecified alcohol-induced disorder |
| F10.221 | Alcohol dependence with intoxication delirium |
| F10.230 | Alcohol dependence with withdrawal, uncomplicated |
| F10.231 | Alcohol dependence with withdrawal delirium |
| F10.232 | Alcohol dependence with withdrawal with perceptual disturbance |
| F10.239 | Alcohol dependence with withdrawal, unspecified |
| F10.24 | Alcohol dependence with alcohol-induced mood disorder |
| F10.250 | Alcohol dependence with alcohol-induced psychotic disorder with delusions |
| F10.251 | Alcohol dependence with alcohol-induced psychotic disorder with hallucinations |
| F10.259 | Alcohol dependence with alcohol-induced psychotic disorder, unspecified |
| F10.26 | Alcohol dependence with alcohol-induced persisting amnestic disorder |
| F10.27 | Alcohol dependence with alcohol-induced persisting dementia |
| F10.280 | Alcohol dependence with alcohol-induced anxiety disorder |
| F10.281 | Alcohol dependence with alcohol-induced sexual dysfunction |
| F10.288 | Alcohol dependence with other alcohol-induced disorder |
| F10.29 | Alcohol dependence with unspecified alcohol-induced disorder |
| F10.920 | Alcohol use, unspecified with intoxication, uncomplicated |
| F10.921 | Alcohol use, unspecified with intoxication delirium |
| F10.929 | Alcohol use, unspecified with intoxication, unspecified |
| F10.94 | Alcohol use, unspecified with alcohol-induced mood disorder |
| F10.950 | Alcohol use, unspecified with alcohol-induced psychotic disorder with delusions |
| F10.951 | Alcohol use, unspecified with alcohol-induced psychotic disorder with hallucinations |
| F10.959 | Alcohol use, unspecified with alcohol-induced psychotic disorder, unspecified |
| F10.96 | Alcohol use, unspecified with alcohol-induced persisting amnestic disorder |
| F10.97 | Alcohol use, unspecified with alcohol-induced persisting dementia |
| F10.980 | Alcohol use, unspecified with alcohol-induced anxiety disorder |
| F10.981 | Alcohol use, unspecified with alcohol-induced sexual dysfunction |
| F10.988 | Alcohol use, unspecified with other alcohol-induced disorder |
| F10.99 | Alcohol use, unspecified with unspecified alcohol-induced disorder |
| F11.10 | Opioid abuse, uncomplicated |
| F11.120 | Opioid abuse with intoxication, uncomplicated |
| F11.121 | Opioid abuse with intoxication delirium |
| F11.122 | Opioid abuse with intoxication with perceptual disturbance |
| F11.129 | Opioid abuse with intoxication, unspecified |
| F11.14 | Opioid abuse with opioid-induced mood disorder |
| F11.150 | Opioid abuse with opioid-induced psychotic disorder with delusions |
| F11.151 | Opioid abuse with opioid-induced psychotic disorder with hallucinations |
| F11.159 | Opioid abuse with opioid-induced psychotic disorder, unspecified |
| F11.181 | Opioid abuse with opioid-induced sexual dysfunction |
| F11.188 | Opioid abuse with other opioid-induced disorder |
| F11.19 | Opioid abuse with unspecified opioid-induced disorder |
| F11.20 | Opioid dependence, uncomplicated |
| F11.21 | Opioid dependence, in remission |
| F11.222 | Opioid dependence with intoxication with perceptual disturbance |
| F11.259 | Opioid dependence with opioid-induced psychotic disorder, unspecified |
| F11.281 | Opioid dependence with opioid-induced sexual dysfunction |
| F11.288 | Opioid dependence with other opioid-induced disorder |
| F11.90 | Opioid use, unspecified, uncomplicated |
| F11.920 | Opioid use, unspecified with intoxication, uncomplicated |
| F11.921 | Opioid use, unspecified with intoxication delirium |
| F11.922 | Opioid use, unspecified with intoxication with perceptual disturbance |
| F11.929 | Opioid use, unspecified with intoxication, unspecified |
| F11.93 | Opioid use, unspecified with withdrawal |
| F11.94 | Opioid use, unspecified with opioid-induced mood disorder |
| F11.950 | Opioid use, unspecified with opioid-induced psychotic disorder with delusions |
| F11.951 | Opioid use, unspecified with opioid-induced psychotic disorder with hallucinations |
| F11.959 | Opioid use, unspecified with opioid-induced psychotic disorder, unspecified |
| F11.981 | Opioid use, unspecified with opioid-induced sexual dysfunction |
| F11.988 | Opioid use, unspecified with other opioid-induced disorder |
| F11.99 | Opioid use, unspecified with unspecified opioid-induced disorder |
| F12.10 | Cannabis abuse, uncomplicated |
| F12.120 | Cannabis abuse with intoxication, uncomplicated |
| F12.121 | Cannabis abuse with intoxication delirium |
| F12.122 | Cannabis abuse with intoxication with perceptual disturbance |
| F12.129 | Cannabis abuse with intoxication, unspecified |
| F12.150 | Cannabis abuse with psychotic disorder with delusions |
| F12.151 | Cannabis abuse with psychotic disorder with hallucinations |
| F12.159 | Cannabis abuse with psychotic disorder, unspecified |
| F12.180 | Cannabis abuse with cannabis-induced anxiety disorder |
| F12.188 | Cannabis abuse with other cannabis-induced disorder |
| F12.19 | Cannabis abuse with unspecified cannabis-induced disorder |
| F12.20 | Cannabis dependence, uncomplicated |
| F12.21 | Cannabis dependence, in remission |
| F12.222 | Cannabis dependence with intoxication with perceptual disturbance |
| F12.23 | Cannabis dependence with withdrawal |
| F12.259 | Cannabis dependence with psychotic disorder, unspecified |
| F12.280 | Cannabis dependence with cannabis-induced anxiety disorder |
| F12.288 | Cannabis dependence with other cannabis-induced disorder |
| F12.90 | Cannabis use, unspecified, uncomplicated |
| F12.920 | Cannabis use, unspecified with intoxication, uncomplicated |
| F12.921 | Cannabis use, unspecified with intoxication delirium |
| F12.922 | Cannabis use, unspecified with intoxication with perceptual disturbance |
| F12.929 | Cannabis use, unspecified with intoxication, unspecified |
| F12.93 | Cannabis use, unspecified with withdrawal |
| F12.950 | Cannabis use, unspecified with psychotic disorder with delusions |
| F12.951 | Cannabis use, unspecified with psychotic disorder with hallucinations |
| F12.959 | Cannabis use, unspecified with psychotic disorder, unspecified |
| F12.980 | Cannabis use, unspecified with anxiety disorder |
| F12.988 | Cannabis use, unspecified with other cannabis-induced disorder |
| F12.99 | Cannabis use, unspecified with unspecified cannabis-induced disorder |
| F13.10 | Sedative, hypnotic or anxiolytic abuse, uncomplicated |
| F13.120 | Sedative, hypnotic or anxiolytic abuse with intoxication, uncomplicated |
Showing the first 400 of 2006 covered codes — this procedure has a large covered-diagnosis set; see the governing LCD/article for the complete list.
Frequently asked questions
Which ICD-10 codes support medical necessity for CPT 00921?
Medicare coverage policies (LCDs/NCDs and Billing & Coding articles) list 2006 ICD-10 diagnosis codes that support medical necessity for CPT 00921. The covered codes are listed on this page. Coverage varies by MAC/state — always confirm against the policy that applies to you.
What is a medical-necessity (LCD/NCD) crosswalk?
A claim whose procedure isn't supported by a covered diagnosis denies as "not medically necessary" (CARC 50). CMS coverage policies define which diagnoses justify a procedure; this page is the ICD-10 → CPT 00921 view of that relationship.
Catch medical-necessity denials before you bill. CareNiva scrubs claims against LCD/NCD coverage and flags unsupported diagnoses — in the same platform you run visits and billing.
More free billing tools: all crosswalks · NCCI edits · Medicare fees · denial codes
Informational only, not coding, billing, or legal advice. Based on CMS Medicare Coverage Database data; verify the current LCD/NCD for your MAC before billing.
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