ICD-10-CM Code C44.500
Unspecified malignant neoplasm of anal skin
Billable CodeBillable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
C44.500 is a billable ICD code used to specify a diagnosis of unspecified malignant neoplasm of anal skin. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code C44 is used to code Merkel-cell carcinoma
Merkel-cell carcinoma is a rare and highly aggressive skin cancer, which, in most cases, is caused by the Merkel cell polyomavirus (MCV) discovered by scientists at the University of Pittsburgh in 2008. It is also known as cutaneous APUDoma, primary neuroendocrine carcinoma of the skin, primary small cell carcinoma of the skin, and trabecular carcinoma of the skin.
|MeSH Codes:||D015266, D015266, D015266, D015266, D015266, D015266|
|ICD 9 Codes:||209.31, 209.32, 209.33, 209.34, 209.35, 209.36|
Micrograph of a Merkel-cell carcinoma. H&E stain.
Coding Notes for C44.500 Info for medical coders on how to properly use this ICD-10 code
Inclusion TermsInclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
- Unspecified malignant neoplasm of anal margin
- Unspecified malignant neoplasm of perianal skin
- DRG Group #606-607 - Minor skin disorders with MCC.
- DRG Group #606-607 - Minor skin disorders without MCC.
ICD-10-CM Neoplasms Index References for 'C44.500 - Unspecified malignant neoplasm of anal skin'
The ICD-10-CM Neoplasms Index links the below-listed medical terms to the ICD code C44.500. Click on any term below to browse the neoplasms index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code C44.500 and a single ICD9 code, 173.50 is an approximate match for comparison and conversion purposes.