CPT 0345U: ICD-10 codes that support medical necessity
These ICD-10-CM diagnoses support medical necessity for CPT 0345U under Medicare coverage policies (LCDs, NCDs, and Billing & Coding articles). Billing CPT 0345U 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 |
|---|---|
| F20.0 | Paranoid schizophrenia |
| F20.1 | Disorganized schizophrenia |
| F20.2 | Catatonic schizophrenia |
| F20.3 | Undifferentiated schizophrenia |
| F20.5 | Residual schizophrenia |
| F20.81 | Schizophreniform disorder |
| F20.89 | Other schizophrenia |
| F31.0 | Bipolar disorder, current episode hypomanic |
| F31.11 | Bipolar disorder, current episode manic without psychotic features, mild |
| F31.12 | Bipolar disorder, current episode manic without psychotic features, moderate |
| F31.13 | Bipolar disorder, current episode manic without psychotic features, severe |
| F31.2 | Bipolar disorder, current episode manic severe with psychotic features |
| F31.31 | Bipolar disorder, current episode depressed, mild |
| F31.32 | Bipolar disorder, current episode depressed, moderate |
| F31.4 | Bipolar disorder, current episode depressed, severe, without psychotic features |
| F31.5 | Bipolar disorder, current episode depressed, severe, with psychotic features |
| F31.61 | Bipolar disorder, current episode mixed, mild |
| F31.62 | Bipolar disorder, current episode mixed, moderate |
| F31.63 | Bipolar disorder, current episode mixed, severe, without psychotic features |
| F31.64 | Bipolar disorder, current episode mixed, severe, with psychotic features |
| F31.71 | Bipolar disorder, in partial remission, most recent episode hypomanic |
| F31.73 | Bipolar disorder, in partial remission, most recent episode manic |
| F31.75 | Bipolar disorder, in partial remission, most recent episode depressed |
| F31.77 | Bipolar disorder, in partial remission, most recent episode mixed |
| F32.1 | Major depressive disorder, single episode, moderate |
| F32.2 | Major depressive disorder, single episode, severe without psychotic features |
| F32.3 | Major depressive disorder, single episode, severe with psychotic features |
| F32.4 | Major depressive disorder, single episode, in partial remission |
| F33.1 | Major depressive disorder, recurrent, moderate |
| F33.2 | Major depressive disorder, recurrent severe without psychotic features |
| F33.3 | Major depressive disorder, recurrent, severe with psychotic symptoms |
| F33.41 | Major depressive disorder, recurrent, in partial remission |
| F40.11 | Social phobia, generalized |
| F41.0 | Panic disorder [episodic paroxysmal anxiety] |
| F41.1 | Generalized anxiety disorder |
| F41.3 | Other mixed anxiety disorders |
| F41.8 | Other specified anxiety disorders |
| F43.11 | Post-traumatic stress disorder, acute |
| F43.12 | Post-traumatic stress disorder, chronic |
| F60.5 | Obsessive-compulsive personality disorder |
| F90.0 | Attention-deficit hyperactivity disorder, predominantly inattentive type |
| F90.1 | Attention-deficit hyperactivity disorder, predominantly hyperactive type |
| F90.2 | Attention-deficit hyperactivity disorder, combined type |
| F90.8 | Attention-deficit hyperactivity disorder, other type |
| XX0.00 |
Frequently asked questions
Which ICD-10 codes support medical necessity for CPT 0345U?
Medicare coverage policies (LCDs/NCDs and Billing & Coding articles) list 45 ICD-10 diagnosis codes that support medical necessity for CPT 0345U. 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 0345U view of that relationship.
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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