ICD↔CPT crosswalk
CPT 70558: ICD-10 codes that support medical necessity
These ICD-10-CM diagnoses support medical necessity for CPT 70558 under Medicare coverage policies (LCDs, NCDs, and Billing & Coding articles). Billing CPT 70558 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 |
|---|---|
| A02.21 | Salmonella meningitis |
| A06.6 | Amebic brain abscess |
| A17.0 | Tuberculous meningitis |
| A17.1 | Meningeal tuberculoma |
| A17.81 | Tuberculoma of brain and spinal cord |
| A17.82 | Tuberculous meningoencephalitis |
| A17.83 | Tuberculous neuritis |
| A17.89 | Other tuberculosis of nervous system |
| A18.01 | Tuberculosis of spine |
| A18.03 | Tuberculosis of other bones |
| A18.51 | Tuberculous episcleritis |
| A18.52 | Tuberculous keratitis |
| A18.53 | Tuberculous chorioretinitis |
| A18.54 | Tuberculous iridocyclitis |
| A18.59 | Other tuberculosis of eye |
| A18.6 | Tuberculosis of (inner) (middle) ear |
| A27.81 | Aseptic meningitis in leptospirosis |
| A32.11 | Listerial meningitis |
| A32.12 | Listerial meningoencephalitis |
| A32.7 | Listerial sepsis |
| A32.81 | Oculoglandular listeriosis |
| A32.89 | Other forms of listeriosis |
| A39.0 | Meningococcal meningitis |
| A39.1 | Waterhouse-Friderichsen syndrome |
| A39.2 | Acute meningococcemia |
| A39.3 | Chronic meningococcemia |
| A39.81 | Meningococcal encephalitis |
| A39.82 | Meningococcal retrobulbar neuritis |
| A39.83 | Meningococcal arthritis |
| A39.84 | Postmeningococcal arthritis |
| A39.89 | Other meningococcal infections |
| A41.9 | Sepsis, unspecified organism |
| A50.32 | Late congenital syphilitic chorioretinitis |
| A50.39 | Other late congenital syphilitic oculopathy |
| A50.40 | Late congenital neurosyphilis, unspecified |
| A50.41 | Late congenital syphilitic meningitis |
| A50.42 | Late congenital syphilitic encephalitis |
| A50.43 | Late congenital syphilitic polyneuropathy |
| A50.44 | Late congenital syphilitic optic nerve atrophy |
| A50.45 | Juvenile general paresis |
| A50.49 | Other late congenital neurosyphilis |
| A50.59 | Other late congenital syphilis, symptomatic |
| A51.41 | Secondary syphilitic meningitis |
| A52.11 | Tabes dorsalis |
| A52.12 | Other cerebrospinal syphilis |
| A52.13 | Late syphilitic meningitis |
| A52.14 | Late syphilitic encephalitis |
| A52.15 | Late syphilitic neuropathy |
| A52.19 | Other symptomatic neurosyphilis |
| A54.81 | Gonococcal meningitis |
| A80.0 | Acute paralytic poliomyelitis, vaccine-associated |
| A80.1 | Acute paralytic poliomyelitis, wild virus, imported |
| A80.2 | Acute paralytic poliomyelitis, wild virus, indigenous |
| A80.39 | Other acute paralytic poliomyelitis |
| A80.4 | Acute nonparalytic poliomyelitis |
| A81.00 | Creutzfeldt-Jakob disease, unspecified |
| A81.01 | Variant Creutzfeldt-Jakob disease |
| A81.09 | Other Creutzfeldt-Jakob disease |
| A81.1 | Subacute sclerosing panencephalitis |
| A81.2 | Progressive multifocal leukoencephalopathy |
| A81.81 | Kuru |
| A81.82 | Gerstmann-Straussler-Scheinker syndrome |
| A81.83 | Fatal familial insomnia |
| A81.89 | Other atypical virus infections of central nervous system |
| A81.9 | Atypical virus infection of central nervous system, unspecified |
| A82.0 | Sylvatic rabies |
| A82.1 | Urban rabies |
| A83.0 | Japanese encephalitis |
| A83.1 | Western equine encephalitis |
| A83.2 | Eastern equine encephalitis |
| A83.3 | St Louis encephalitis |
| A83.4 | Australian encephalitis |
| A83.5 | California encephalitis |
| A83.6 | Rocio virus disease |
| A83.8 | Other mosquito-borne viral encephalitis |
| A84.0 | Far Eastern tick-borne encephalitis [Russian spring-summer encephalitis] |
| A84.1 | Central European tick-borne encephalitis |
| A84.81 | Powassan virus disease |
| A84.89 | Other tick-borne viral encephalitis |
| A84.9 | Tick-borne viral encephalitis, unspecified |
| A85.0 | Enteroviral encephalitis |
| A85.1 | Adenoviral encephalitis |
| A85.2 | Arthropod-borne viral encephalitis, unspecified |
| A85.8 | Other specified viral encephalitis |
| A87.0 | Enteroviral meningitis |
| A87.1 | Adenoviral meningitis |
| A87.2 | Lymphocytic choriomeningitis |
| A87.8 | Other viral meningitis |
| A88.1 | Epidemic vertigo |
| A88.8 | Other specified viral infections of central nervous system |
| A92.2 | Venezuelan equine fever |
| A92.31 | West Nile virus infection with encephalitis |
| A92.32 | West Nile virus infection with other neurologic manifestation |
| A92.39 | West Nile virus infection with other complications |
| B00.3 | Herpesviral meningitis |
| B00.4 | Herpesviral encephalitis |
| B00.7 | Disseminated herpesviral disease |
| B00.82 | Herpes simplex myelitis |
| B01.0 | Varicella meningitis |
| B01.11 | Varicella encephalitis and encephalomyelitis |
| B01.12 | Varicella myelitis |
| B02.0 | Zoster encephalitis |
| B02.1 | Zoster meningitis |
| B02.21 | Postherpetic geniculate ganglionitis |
| B02.22 | Postherpetic trigeminal neuralgia |
| B02.23 | Postherpetic polyneuropathy |
| B02.24 | Postherpetic myelitis |
| B02.29 | Other postherpetic nervous system involvement |
| B02.30 | Zoster ocular disease, unspecified |
| B02.31 | Zoster conjunctivitis |
| B02.32 | Zoster iridocyclitis |
| B02.33 | Zoster keratitis |
| B02.34 | Zoster scleritis |
| B02.39 | Other herpes zoster eye disease |
| B02.7 | Disseminated zoster |
| B02.8 | Zoster with other complications |
| B05.0 | Measles complicated by encephalitis |
| B06.00 | Rubella with neurological complication, unspecified |
| B06.01 | Rubella encephalitis |
| B06.02 | Rubella meningitis |
| B06.09 | Other neurological complications of rubella |
| B10.01 | Human herpesvirus 6 encephalitis |
| B10.09 | Other human herpesvirus encephalitis |
| B20 | Human immunodeficiency virus [HIV] disease |
| B25.8 | Other cytomegaloviral diseases |
| B26.1 | Mumps meningitis |
| B26.2 | Mumps encephalitis |
| B26.84 | Mumps polyneuropathy |
| B37.5 | Candidal meningitis |
| B37.7 | Candidal sepsis |
| B38.4 | Coccidioidomycosis meningitis |
| B39.9 | Histoplasmosis, unspecified |
| B42.7 | Disseminated sporotrichosis |
| B42.81 | Cerebral sporotrichosis |
| B42.89 | Other forms of sporotrichosis |
| B44.7 | Disseminated aspergillosis |
| B44.89 | Other forms of aspergillosis |
| B45.1 | Cerebral cryptococcosis |
| B45.7 | Disseminated cryptococcosis |
| B45.8 | Other forms of cryptococcosis |
| B48.4 | Penicillosis |
| B48.8 | Other specified mycoses |
| B56.9 | African trypanosomiasis, unspecified |
| B58.2 | Toxoplasma meningoencephalitis |
| B60.01 | Babesiosis due to Babesia microti |
| B60.02 | Babesiosis due to Babesia duncani |
| B60.03 | Babesiosis due to Babesia divergens |
| B60.09 | Other babesiosis |
| B60.11 | Meningoencephalitis due to Acanthamoeba (culbertsoni) |
| B65.0 | Schistosomiasis due to Schistosoma haematobium [urinary schistosomiasis] |
| B65.1 | Schistosomiasis due to Schistosoma mansoni [intestinal schistosomiasis] |
| B65.2 | Schistosomiasis due to Schistosoma japonicum |
| B65.3 | Cercarial dermatitis |
| B65.8 | Other schistosomiasis |
| B66.4 | Paragonimiasis |
| B67.32 | Echinococcus granulosus infection, multiple sites |
| B67.39 | Echinococcus granulosus infection, other sites |
| B69.0 | Cysticercosis of central nervous system |
| B69.1 | Cysticercosis of eye |
| B69.81 | Myositis in cysticercosis |
| B69.89 | Cysticercosis of other sites |
| B75 | Trichinellosis |
| B90.0 | Sequelae of central nervous system tuberculosis |
| B91 | Sequelae of poliomyelitis |
| B94.1 | Sequelae of viral encephalitis |
| C00.0 | Malignant neoplasm of external upper lip |
| C00.1 | Malignant neoplasm of external lower lip |
| C00.2 | Malignant neoplasm of external lip, unspecified |
| C00.3 | Malignant neoplasm of upper lip, inner aspect |
| C00.4 | Malignant neoplasm of lower lip, inner aspect |
| C00.5 | Malignant neoplasm of lip, unspecified, inner aspect |
| C00.6 | Malignant neoplasm of commissure of lip, unspecified |
| C00.8 | Malignant neoplasm of overlapping sites of lip |
| C01 | Malignant neoplasm of base of tongue |
| C02.0 | Malignant neoplasm of dorsal surface of tongue |
| C02.1 | Malignant neoplasm of border of tongue |
| C02.2 | Malignant neoplasm of ventral surface of tongue |
| C02.3 | Malignant neoplasm of anterior two-thirds of tongue, part unspecified |
| C02.4 | Malignant neoplasm of lingual tonsil |
| C02.8 | Malignant neoplasm of overlapping sites of tongue |
| C03.0 | Malignant neoplasm of upper gum |
| C03.1 | Malignant neoplasm of lower gum |
| C04.0 | Malignant neoplasm of anterior floor of mouth |
| C04.1 | Malignant neoplasm of lateral floor of mouth |
| C04.8 | Malignant neoplasm of overlapping sites of floor of mouth |
| C05.0 | Malignant neoplasm of hard palate |
| C05.1 | Malignant neoplasm of soft palate |
| C05.2 | Malignant neoplasm of uvula |
| C05.8 | Malignant neoplasm of overlapping sites of palate |
| C06.0 | Malignant neoplasm of cheek mucosa |
| C06.1 | Malignant neoplasm of vestibule of mouth |
| C06.2 | Malignant neoplasm of retromolar area |
| C06.89 | Malignant neoplasm of overlapping sites of other parts of mouth |
| C07 | Malignant neoplasm of parotid gland |
| C08.0 | Malignant neoplasm of submandibular gland |
| C08.1 | Malignant neoplasm of sublingual gland |
| C08.9 | Malignant neoplasm of major salivary gland, unspecified |
| C09.0 | Malignant neoplasm of tonsillar fossa |
| C09.1 | Malignant neoplasm of tonsillar pillar (anterior) (posterior) |
| C09.8 | Malignant neoplasm of overlapping sites of tonsil |
| C10.0 | Malignant neoplasm of vallecula |
| C10.1 | Malignant neoplasm of anterior surface of epiglottis |
| C10.2 | Malignant neoplasm of lateral wall of oropharynx |
| C10.3 | Malignant neoplasm of posterior wall of oropharynx |
| C10.4 | Malignant neoplasm of branchial cleft |
| C10.8 | Malignant neoplasm of overlapping sites of oropharynx |
| C11.0 | Malignant neoplasm of superior wall of nasopharynx |
| C11.1 | Malignant neoplasm of posterior wall of nasopharynx |
| C11.2 | Malignant neoplasm of lateral wall of nasopharynx |
| C11.3 | Malignant neoplasm of anterior wall of nasopharynx |
| C11.8 | Malignant neoplasm of overlapping sites of nasopharynx |
| C12 | Malignant neoplasm of pyriform sinus |
| C13.0 | Malignant neoplasm of postcricoid region |
| C13.1 | Malignant neoplasm of aryepiglottic fold, hypopharyngeal aspect |
| C13.2 | Malignant neoplasm of posterior wall of hypopharynx |
| C13.8 | Malignant neoplasm of overlapping sites of hypopharynx |
| C14.0 | Malignant neoplasm of pharynx, unspecified |
| C14.2 | Malignant neoplasm of Waldeyer's ring |
| C14.8 | Malignant neoplasm of overlapping sites of lip, oral cavity and pharynx |
| C15.3 | Malignant neoplasm of upper third of esophagus |
| C15.4 | Malignant neoplasm of middle third of esophagus |
| C15.5 | Malignant neoplasm of lower third of esophagus |
| C15.8 | Malignant neoplasm of overlapping sites of esophagus |
| C16.0 | Malignant neoplasm of cardia |
| C16.1 | Malignant neoplasm of fundus of stomach |
| C16.2 | Malignant neoplasm of body of stomach |
| C16.3 | Malignant neoplasm of pyloric antrum |
| C16.4 | Malignant neoplasm of pylorus |
| C16.8 | Malignant neoplasm of overlapping sites of stomach |
| C17.0 | Malignant neoplasm of duodenum |
| C17.1 | Malignant neoplasm of jejunum |
| C17.2 | Malignant neoplasm of ileum |
| C17.3 | Meckel's diverticulum, malignant |
| C17.8 | Malignant neoplasm of overlapping sites of small intestine |
| C18.0 | Malignant neoplasm of cecum |
| C18.1 | Malignant neoplasm of appendix |
| C18.2 | Malignant neoplasm of ascending colon |
| C18.3 | Malignant neoplasm of hepatic flexure |
| C18.4 | Malignant neoplasm of transverse colon |
| C18.5 | Malignant neoplasm of splenic flexure |
| C18.6 | Malignant neoplasm of descending colon |
| C18.7 | Malignant neoplasm of sigmoid colon |
| C18.8 | Malignant neoplasm of overlapping sites of colon |
| C19 | Malignant neoplasm of rectosigmoid junction |
| C20 | Malignant neoplasm of rectum |
| C21.1 | Malignant neoplasm of anal canal |
| C21.2 | Malignant neoplasm of cloacogenic zone |
| C21.8 | Malignant neoplasm of overlapping sites of rectum, anus and anal canal |
| C22.0 | Liver cell carcinoma |
| C22.1 | Intrahepatic bile duct carcinoma |
| C22.2 | Hepatoblastoma |
| C22.3 | Angiosarcoma of liver |
| C22.4 | Other sarcomas of liver |
| C22.7 | Other specified carcinomas of liver |
| C22.9 | Malignant neoplasm of liver, not specified as primary or secondary |
| C30.0 | Malignant neoplasm of nasal cavity |
| C30.1 | Malignant neoplasm of middle ear |
| C31.0 | Malignant neoplasm of maxillary sinus |
| C31.1 | Malignant neoplasm of ethmoidal sinus |
| C31.2 | Malignant neoplasm of frontal sinus |
| C31.3 | Malignant neoplasm of sphenoid sinus |
| C31.8 | Malignant neoplasm of overlapping sites of accessory sinuses |
| C32.0 | Malignant neoplasm of glottis |
| C32.1 | Malignant neoplasm of supraglottis |
| C32.2 | Malignant neoplasm of subglottis |
| C32.3 | Malignant neoplasm of laryngeal cartilage |
| C32.8 | Malignant neoplasm of overlapping sites of larynx |
| C33 | Malignant neoplasm of trachea |
| C34.01 | Malignant neoplasm of right main bronchus |
| C34.02 | Malignant neoplasm of left main bronchus |
| C34.11 | Malignant neoplasm of upper lobe, right bronchus or lung |
| C34.12 | Malignant neoplasm of upper lobe, left bronchus or lung |
| C34.2 | Malignant neoplasm of middle lobe, bronchus or lung |
| C34.31 | Malignant neoplasm of lower lobe, right bronchus or lung |
| C34.32 | Malignant neoplasm of lower lobe, left bronchus or lung |
| C34.81 | Malignant neoplasm of overlapping sites of right bronchus and lung |
| C34.82 | Malignant neoplasm of overlapping sites of left bronchus and lung |
| C37 | Malignant neoplasm of thymus |
| C38.0 | Malignant neoplasm of heart |
| C38.1 | Malignant neoplasm of anterior mediastinum |
| C38.2 | Malignant neoplasm of posterior mediastinum |
| C38.4 | Malignant neoplasm of pleura |
| C38.8 | Malignant neoplasm of overlapping sites of heart, mediastinum and pleura |
| C40.01 | Malignant neoplasm of scapula and long bones of right upper limb |
| C40.02 | Malignant neoplasm of scapula and long bones of left upper limb |
| C40.10 | Malignant neoplasm of short bones of unspecified upper limb |
| C40.11 | Malignant neoplasm of short bones of right upper limb |
| C40.12 | Malignant neoplasm of short bones of left upper limb |
| C40.21 | Malignant neoplasm of long bones of right lower limb |
| C40.22 | Malignant neoplasm of long bones of left lower limb |
| C40.31 | Malignant neoplasm of short bones of right lower limb |
| C40.32 | Malignant neoplasm of short bones of left lower limb |
| C40.81 | Malignant neoplasm of overlapping sites of bone and articular cartilage of right limb |
| C40.82 | Malignant neoplasm of overlapping sites of bone and articular cartilage of left limb |
| C40.91 | Malignant neoplasm of unspecified bones and articular cartilage of right limb |
| C40.92 | Malignant neoplasm of unspecified bones and articular cartilage of left limb |
| C41.0 | Malignant neoplasm of bones of skull and face |
| C41.1 | Malignant neoplasm of mandible |
| C41.2 | Malignant neoplasm of vertebral column |
| C41.3 | Malignant neoplasm of ribs, sternum and clavicle |
| C41.4 | Malignant neoplasm of pelvic bones, sacrum and coccyx |
| C43.0 | Malignant melanoma of lip |
| C43.111 | Malignant melanoma of right upper eyelid, including canthus |
| C43.112 | Malignant melanoma of right lower eyelid, including canthus |
| C43.121 | Malignant melanoma of left upper eyelid, including canthus |
| C43.122 | Malignant melanoma of left lower eyelid, including canthus |
| C43.21 | Malignant melanoma of right ear and external auricular canal |
| C43.22 | Malignant melanoma of left ear and external auricular canal |
| C43.31 | Malignant melanoma of nose |
| C43.39 | Malignant melanoma of other parts of face |
| C43.4 | Malignant melanoma of scalp and neck |
| C43.51 | Malignant melanoma of anal skin |
| C43.52 | Malignant melanoma of skin of breast |
| C43.59 | Malignant melanoma of other part of trunk |
| C43.61 | Malignant melanoma of right upper limb, including shoulder |
| C43.62 | Malignant melanoma of left upper limb, including shoulder |
| C43.71 | Malignant melanoma of right lower limb, including hip |
| C43.72 | Malignant melanoma of left lower limb, including hip |
| C43.8 | Malignant melanoma of overlapping sites of skin |
| C44.01 | Basal cell carcinoma of skin of lip |
| C44.02 | Squamous cell carcinoma of skin of lip |
| C44.09 | Other specified malignant neoplasm of skin of lip |
| C44.1121 | Basal cell carcinoma of skin of right upper eyelid, including canthus |
| C44.1122 | Basal cell carcinoma of skin of right lower eyelid, including canthus |
| C44.1191 | Basal cell carcinoma of skin of left upper eyelid, including canthus |
| C44.1192 | Basal cell carcinoma of skin of left lower eyelid, including canthus |
| C44.1221 | Squamous cell carcinoma of skin of right upper eyelid, including canthus |
| C44.1222 | Squamous cell carcinoma of skin of right lower eyelid, including canthus |
| C44.1291 | Squamous cell carcinoma of skin of left upper eyelid, including canthus |
| C44.1292 | Squamous cell carcinoma of skin of left lower eyelid, including canthus |
| C44.1921 | Other specified malignant neoplasm of skin of right upper eyelid, including canthus |
| C44.1922 | Other specified malignant neoplasm of skin of right lower eyelid, including canthus |
| C44.1991 | Other specified malignant neoplasm of skin of left upper eyelid, including canthus |
| C44.1992 | Other specified malignant neoplasm of skin of left lower eyelid, including canthus |
| C44.212 | Basal cell carcinoma of skin of right ear and external auricular canal |
| C44.219 | Basal cell carcinoma of skin of left ear and external auricular canal |
| C44.222 | Squamous cell carcinoma of skin of right ear and external auricular canal |
| C44.229 | Squamous cell carcinoma of skin of left ear and external auricular canal |
| C44.292 | Other specified malignant neoplasm of skin of right ear and external auricular canal |
| C44.299 | Other specified malignant neoplasm of skin of left ear and external auricular canal |
| C44.311 | Basal cell carcinoma of skin of nose |
| C44.319 | Basal cell carcinoma of skin of other parts of face |
| C44.321 | Squamous cell carcinoma of skin of nose |
| C44.329 | Squamous cell carcinoma of skin of other parts of face |
| C44.391 | Other specified malignant neoplasm of skin of nose |
| C44.399 | Other specified malignant neoplasm of skin of other parts of face |
| C44.41 | Basal cell carcinoma of skin of scalp and neck |
| C44.42 | Squamous cell carcinoma of skin of scalp and neck |
| C44.49 | Other specified malignant neoplasm of skin of scalp and neck |
| C44.82 | Squamous cell carcinoma of overlapping sites of skin |
| C44.89 | Other specified malignant neoplasm of overlapping sites of skin |
| C44.92 | Squamous cell carcinoma of skin, unspecified |
| C44.99 | Other specified malignant neoplasm of skin, unspecified |
| C45.0 | Mesothelioma of pleura |
| C45.1 | Mesothelioma of peritoneum |
| C45.2 | Mesothelioma of pericardium |
| C45.7 | Mesothelioma of other sites |
| C46.0 | Kaposi's sarcoma of skin |
| C46.1 | Kaposi's sarcoma of soft tissue |
| C46.2 | Kaposi's sarcoma of palate |
| C46.3 | Kaposi's sarcoma of lymph nodes |
| C46.4 | Kaposi's sarcoma of gastrointestinal sites |
| C46.7 | Kaposi's sarcoma of other sites |
| C47.0 | Malignant neoplasm of peripheral nerves of head, face and neck |
| C47.11 | Malignant neoplasm of peripheral nerves of right upper limb, including shoulder |
| C47.12 | Malignant neoplasm of peripheral nerves of left upper limb, including shoulder |
| C47.21 | Malignant neoplasm of peripheral nerves of right lower limb, including hip |
| C47.22 | Malignant neoplasm of peripheral nerves of left lower limb, including hip |
| C47.3 | Malignant neoplasm of peripheral nerves of thorax |
| C47.4 | Malignant neoplasm of peripheral nerves of abdomen |
| C47.5 | Malignant neoplasm of peripheral nerves of pelvis |
| C47.8 | Malignant neoplasm of overlapping sites of peripheral nerves and autonomic nervous system |
| C48.0 | Malignant neoplasm of retroperitoneum |
| C48.1 | Malignant neoplasm of specified parts of peritoneum |
| C48.8 | Malignant neoplasm of overlapping sites of retroperitoneum and peritoneum |
| C49.0 | Malignant neoplasm of connective and soft tissue of head, face and neck |
| C49.11 | Malignant neoplasm of connective and soft tissue of right upper limb, including shoulder |
| C49.12 | Malignant neoplasm of connective and soft tissue of left upper limb, including shoulder |
| C49.21 | Malignant neoplasm of connective and soft tissue of right lower limb, including hip |
| C49.22 | Malignant neoplasm of connective and soft tissue of left lower limb, including hip |
| C49.3 | Malignant neoplasm of connective and soft tissue of thorax |
| C49.4 | Malignant neoplasm of connective and soft tissue of abdomen |
| C49.5 | Malignant neoplasm of connective and soft tissue of pelvis |
| C49.8 | Malignant neoplasm of overlapping sites of connective and soft tissue |
| C4A.0 | Merkel cell carcinoma of lip |
| C4A.111 | Merkel cell carcinoma of right upper eyelid, including canthus |
| C4A.112 | Merkel cell carcinoma of right lower eyelid, including canthus |
| C4A.121 | Merkel cell carcinoma of left upper eyelid, including canthus |
| C4A.122 | Merkel cell carcinoma of left lower eyelid, including canthus |
| C4A.21 | Merkel cell carcinoma of right ear and external auricular canal |
| C4A.22 | Merkel cell carcinoma of left ear and external auricular canal |
| C4A.31 | Merkel cell carcinoma of nose |
| C4A.39 | Merkel cell carcinoma of other parts of face |
| C4A.4 | Merkel cell carcinoma of scalp and neck |
| C50.011 | Malignant neoplasm of nipple and areola, right female breast |
| C50.012 | Malignant neoplasm of nipple and areola, left female breast |
| C50.021 | Malignant neoplasm of nipple and areola, right male breast |
| C50.022 | Malignant neoplasm of nipple and areola, left male breast |
| C50.111 | Malignant neoplasm of central portion of right female breast |
| C50.112 | Malignant neoplasm of central portion of left female breast |
Showing the first 400 of 6458 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 70558?
Medicare coverage policies (LCDs/NCDs and Billing & Coding articles) list 6458 ICD-10 diagnosis codes that support medical necessity for CPT 70558. 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 70558 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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