C4A.111 ICD-10-CM Code: Merkel cell carcinoma of right upper eyelid, including canthus
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
C4A.111Merkel cell carcinoma of right upper eyelid, including canthus
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where C4A.111 sits
- 1
Chapter 2
Neoplasms (C00-D49)
- 2
Section
Malignant neoplasms (C00-C96)
- 3
Category C4A
Merkel cell carcinoma
- 4
Subcategory C4A.11
Merkel cell carcinoma of right eyelid, including canthus
- 5
Code C4A.111
Merkel cell carcinoma of right upper eyelid, including canthus
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for C4A.111.
Code first
No “code first” instruction is listed for C4A.111.
Use additional code
No “use additional code” instruction is listed for C4A.111.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for C4A.111.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for C4A.111.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code C4A.111 mean?
C4A.111 is the FY 2027 U.S. ICD-10-CM code for “Merkel cell carcinoma of right upper eyelid, including canthus.”
Is C4A.111 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, C4A.111 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is C4A.111 located in ICD-10-CM?
C4A.111 is listed in Chapter 2, Neoplasms (C00-D49), within Malignant neoplasms (C00-C96) (C00–C96), under category C4A, Merkel cell carcinoma and subcategory C4A.11, Merkel cell carcinoma of right eyelid, including canthus.
What coding notes are listed for C4A.111?
No inclusion terms are listed for C4A.111 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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Related C4A.11 codes
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