ICD-9-CM diagnosis code (retired)
530.81 — Esophageal reflux
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 530.81
530.81 is an ICD-9-CM diagnosis code for esophageal reflux. 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, K21.9 (Gastro-esophageal reflux disease without esophagitis). The match is exact.
ICD-10-CM equivalents
- K21.9Gastro-esophageal reflux disease without esophagitisexact match
Common questions about 530.81
What is the ICD-10 code for ICD-9 530.81?
- The GEMs map 530.81 to ICD-10-CM K21.9.
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.