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C44.91 — Basal cell carcinoma of skin, unspecified
C44.91
What this code means
Basal cell carcinoma is a very common, slow-growing skin cancer that rarely spreads to other organs.
Also called: basal cell carcinoma, bcc, rodent ulcer.
When this code is used
Used for basal cell carcinoma of skin when the site is not specified.
Where it sits in ICD-10-CM
Code C44.91 belongs to Chapter 2: Neoplasms, which covers codes C00–D49 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Learn more about this condition
Related anatomy
Watch: related videos
Frequently asked questions
What is ICD-10-CM code C44.91?
C44.91 is the ICD-10-CM diagnosis code for “Basal cell carcinoma of skin, unspecified”. Basal cell carcinoma is a very common, slow-growing skin cancer that rarely spreads to other organs.
When is code C44.91 used?
Used for basal cell carcinoma of skin when the site is not specified. It belongs to Chapter 2 of ICD-10-CM (Neoplasms).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.