Convert ICD-10 J99 to ICD-9

ICD-10 code J99, Respiratory disorders in diseases classified elsewhere, 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 J99

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

ICD-10 code J99, "Respiratory disorders in diseases classified elsewhere", maps to ICD-9 code 517.8, "Lung involv in oth dis". 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

J99

Respiratory disorders in diseases classified elsewhere

ICD‑9 Code

517.8

Lung involv in oth dis

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 J99 code page → Or run the reverse crosswalk: convert 517.8 back to ICD-10 →