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Code
Description

ICD-10-CM Code C44.90
Unspecified malignant neoplasm of skin, unspecified

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

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.

Specialty: Oncology
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 Terms:
Inclusion Terms
Inclusion 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

MS-DRG Mapping

  • DRG Group #606-607 - Minor skin disorders with MCC.
  • DRG Group #606-607 - Minor skin disorders without MCC.

Related Concepts SNOMET-CT

  • Torré-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)

Unspecified malignant neoplasm of skin, site unspecified (exact match)

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.


Parent Code: C44.9 - Other and unspecified malignant neoplasm of skin, unspecified

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/C4490