ICD-10-CM Code C44.90
Unspecified malignant neoplasm of skin, unspecified
Billable CodeBillable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
C44.90 is a billable ICD code used to specify a diagnosis of unspecified malignant neoplasm of skin, unspecified. 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 C44.90 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.
- Malignant neoplasm of unspecified site of skin
- DRG Group #606-607 - Minor skin disorders with MCC.
- DRG Group #606-607 - Minor skin disorders without MCC.
Related Concepts SNOMET-CT
- TorrÃ©-Muir syndrome (disorder)
ICD-10-CM Neoplasms Index References for 'C44.90 - Unspecified malignant neoplasm of skin, unspecified'
The ICD-10-CM Neoplasms Index links the below-listed medical terms to the ICD code C44.90. Click on any term below to browse the neoplasms index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 173.90 was previously used, C44.90 is the appropriate modern ICD10 code.