ICD-10-CM · Chapter 2 · C00–D49
C4A.0
Merkel cell carcinoma of lip
Neoplasms
Quick facts
- Code
- C4A.0
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 2 — Neoplasms
- Category
- C4A — Merkel cell carcinoma
- Specificity
- 4 characters
How coders use this code
ICD-10-CM C4A.0 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of merkel cell carcinoma of lip. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in C4A
- C4AMerkel cell carcinoma
- C4A.1Merkel cell carcinoma of eyelid, including canthus
- C4A.10Merkel cell carcinoma of unspecified eyelid, including canthus
- C4A.11Merkel cell carcinoma of right eyelid, including canthus
- C4A.111Merkel cell carcinoma of right upper eyelid, including canthus
- C4A.112Merkel cell carcinoma of right lower eyelid, including canthus
- C4A.12Merkel cell carcinoma of left eyelid, including canthus
- C4A.121Merkel cell carcinoma of left upper eyelid, including canthus
- C4A.122Merkel cell carcinoma of left lower eyelid, including canthus
- C4A.2Merkel cell carcinoma of ear and external auricular canal
- C4A.20Merkel cell carcinoma of unspecified ear and external auricular canal
- C4A.21Merkel cell carcinoma of right ear and external auricular canal
- C4A.22Merkel cell carcinoma of left ear and external auricular canal
- C4A.3Merkel cell carcinoma of other and unspecified parts of face
- C4A.30Merkel cell carcinoma of unspecified part of face
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