Convert ICD-9 401.0 to ICD-10

ICD-9 code 401.0, Malignant hypertension, 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-9 401.0

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

ICD-9 code 401.0, "Malignant hypertension", maps to ICD-10 code I10, "Essential (primary) hypertension". 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

401.0

Malignant hypertension

ICD‑10 Code

I10

Essential (primary) hypertension

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 401.0 code page → Or run the reverse crosswalk: convert I10 back to ICD-9 →