ICD-10-CM Code C44.221
Squamous cell carcinoma of skin of unspecified ear and external auricular canal
Billable CodeBillable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
C44.221 is a billable ICD code used to specify a diagnosis of squamous cell carcinoma of skin of unspecified ear and external auricular canal. 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.
- DRG Group #606-607 - Minor skin disorders with MCC.
- DRG Group #606-607 - Minor skin disorders without MCC.
Related Concepts SNOMET-CT
- Intraepidermal squamous carcinoma of ear (disorder)
Coding Advice SNOMET-CT
- Consider laterality specification
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 C44.221 and a single ICD9 code, 173.22 is an approximate match for comparison and conversion purposes.