ICD-9-CM diagnosis code (retired)
595.2 — Other chronic cystitis
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 595.2
595.2 is an ICD-9-CM diagnosis code for other chronic cystitis. 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 2 ICD-10-CM codes, such as N30.20 (Other chronic cystitis without hematuria) and N30.21 (Other chronic cystitis with hematuria). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 595.2
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.