Merkel cell carcinoma of nose
- C4A.31 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM C4A.31 became effective on October 1, 2023.
- This is the American ICD-10-CM version of C4A.31 – other international versions of ICD-10 C4A.31 may differ.
The following code(s) above C4A.31 contain annotation back-references
that may be applicable to C4A.31:
- C00-D49 Neoplasms
Approximate Synonyms
- Merkel cell carcinoma, nose
ICD-10-CM C4A.31 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):
Convert C4A.31 to ICD-9-CMCode History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change
Diagnosis Index entries containing back-references to C4A.31:
- Carcinoma (malignant) – see also Neoplasm, by site, malignant
- Merkel cellC4A.9
- nose C4A.31
- Merkel cellC4A.9