Convert ICD-9 310.9 to ICD-10

ICD-9 code 310.9, Nonpsychot brain syn NOS, crosswalked to ICD-10 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-10 mapping for ICD-9 310.9

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

ICD-9 code 310.9, "Nonpsychot brain syn NOS", maps to ICD-10 code F09, "Unsp mental disorder due to known physiological condition". 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‑9 Code

310.9

Nonpsychot brain syn NOS

ICD‑10 Code

F09

Unsp mental disorder due to known physiological condition

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 310.9 code page → Or run the reverse crosswalk: convert F09 back to ICD-9 →