C4A.52
BillableMerkel cell carcinoma of skin of breast
Merkel cell carcinoma of skin of breast
Cross-references
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
Related Codes(2)
How C4A.52 differs from sibling codes
All children of C4A.5 share the same parent. The wording below is what mechanically separates each sibling from C4A.52.
Also Known As / Clinical Terms(22)
SNOMED CT
- Primary malignant neoplasm of skin of breast94012007
- Carcinoma of skin of trunk372127000
- Primary carcinoma of skin of trunk1259532003
- Primary carcinoma of breast1306293004
- Merkel cell carcinoma of trunk133891000119102
- Primary Merkel cell carcinoma of skin of breast351471000119106
- Primary Merkel cell carcinoma of skin of left breast15950421000119107
- Primary Merkel cell carcinoma of skin of right breast15950381000119103
- Primary malignant neoplasm of skin of left breast15950221000119108
- Primary malignant neoplasm of skin of right breast15950061000119105
Clinical Terms
- Primary carcinoma of skin of trunk
- Merkel cell carcinoma of trunk
- Primary Merkel cell carcinoma of skin of breast
- Primary Merkel cell carcinoma of skin of right breast
- Primary malignant neoplasm of skin of left breast
- Primary malignant neoplasm of skin of right breast
- Carcinoma of skin of trunk
- Primary Merkel cell carcinoma of skin of left breast
- Primary malignant neoplasm of skin of breast
- Primary carcinoma of breast
Common questions
What is the ICD-10-CM code for Merkel cell carcinoma of skin of breast?
Merkel cell carcinoma of skin of breast is coded as C4A.52 in ICD-10-CM.
What is ICD-10 code C4A.52?
C4A.52 is the ICD-10-CM identifier for Merkel cell carcinoma of skin of breast. It is included in the official 2025 release of ICD-10-CM published by CMS and NCHS.
Is C4A.52 a billable code?
Yes, C4A.52 is a billable / specific ICD-10-CM code that can be used to indicate a diagnosis on a medical claim.
What is the parent code of C4A.52?
C4A.52 sits under C4A.5 (Merkel cell carcinoma of trunk) in the ICD-10-CM hierarchy.
What chapter does C4A.52 belong to?
C4A.52 is in Chapter 2: Neoplasms.
What are the synonyms for Merkel cell carcinoma of skin of breast?
In clinical text, merkel cell carcinoma of skin of breast is also written as: Carcinoma of skin of trunk, Merkel cell carcinoma of trunk, Primary Merkel cell carcinoma of skin of breast, Primary Merkel cell carcinoma of skin of left breast, Primary Merkel cell carcinoma of skin of right breast, Primary carcinoma of breast, and 4 more. Sourced from SNOMED CT, UMLS Metathesaurus, and clinical-terms enrichment.
Why does C4A.52 map to multiple SNOMED CT concepts?
ICD-10-CM is a billing classification with broader categories than SNOMED CT’s clinical terminology. C4A.52 captures the billing-level concept; SNOMED CT splits it into 10 clinical concepts: 1259532003, 1306293004, 133891000119102, 15950061000119105, 15950221000119108, and 5 more.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.