Convert ICD-10 B49 to ICD-9

ICD-10 code B49, Unspecified mycosis, crosswalked to ICD-9 with the official CMS General Equivalence Mappings. Convert another code below.

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Official CMS General Equivalence Mappings Final GEMs release (FY 2018) Maps in both directions

1 ICD-9 mapping for ICD-10 B49

From the official CMS General Equivalence Mappings. Review each mapping's flags before selecting the final code. Convert another code

ICD-10 code B49, "Unspecified mycosis", maps to ICD-9 code 117.9, "Mycoses NEC & NOS". The mapping is flagged approximate: it is the closest available equivalent, not an exact match, so review the clinical documentation when selecting the final code. The crosswalk comes from the official CMS General Equivalence Mappings.

ICD‑10 Code

B49

Unspecified mycosis

ICD‑9 Code

117.9

Mycoses NEC & NOS

Approximate Flag – This ICD-10 code does not have an exact ICD-9 equivalent. The matched code is the closest available option and may not fully capture the original diagnosis.

See everything about the source code, including its category, synonyms, and history: open the B49 code page → Or run the reverse crosswalk: convert 117.9 back to ICD-10 →