D04.22: Carcinoma in situ of skin of left ear and external auricular canal
D04.22 is the billable ICD-10-CM diagnosis code for Carcinoma in situ of skin of left ear and external auricular canal. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code D04.22?
D04.22 is the ICD-10-CM diagnosis code for Carcinoma in situ of skin of left ear and external auricular canal. It belongs to category D04 (Carcinoma in situ of skin).
Is D04.22 a billable code?
Yes. D04.22 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does D04.22 belong to?
D04.22 is part of ICD-10-CM category D04 — Carcinoma in situ of skin, which has 42 billable codes.
More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees
Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
Code the diagnosis right
Join providers across the country delivering modern virtual care with CareNiva. Free to start, ready in minutes.
100% Satisfaction Guaranteed — try it risk-free