ICD-9-CM diagnosis code (retired)
322.0 — Nonpyogenic meningitis
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 322.0
322.0 is an ICD-9-CM diagnosis code for nonpyogenic meningitis. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to one ICD-10-CM code, G03.0 (Nonpyogenic meningitis). The match is exact.
ICD-10-CM equivalents
- G03.0Nonpyogenic meningitisexact match
Common questions about 322.0
What is the ICD-10 code for ICD-9 322.0?
- The GEMs map 322.0 to ICD-10-CM G03.0.
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.