ICD-9-CM procedure code (retired)
95.21 — Electroretinogram [ERG]
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-PCS equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 95.21
95.21 is an ICD-9-CM procedure code for electroretinogram [ERG]. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-PCS took over.
The CMS General Equivalence Mappings translate it to one ICD-10-PCS code, 4A07X0Z (Measurement of Visual Acuity, External Approach). The match is approximate, so confirm it against the record.
ICD-10-PCS equivalents
- 4A07X0ZMeasurement of Visual Acuity, External Approachapproximate
Common questions about 95.21
What is the ICD-10 code for ICD-9 95.21?
- The GEMs map 95.21 to ICD-10-PCS 4A07X0Z.
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.