ICD-9-CM procedure code (retired)
89.51 — Rhythm electrocardiogram
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 89.51
89.51 is an ICD-9-CM procedure code for rhythm electrocardiogram. 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, 4A02XFZ (Measurement of Cardiac Rhythm, External Approach). The match is approximate, so confirm it against the record.
ICD-10-PCS equivalents
- 4A02XFZMeasurement of Cardiac Rhythm, External Approachapproximate
Common questions about 89.51
What is the ICD-10 code for ICD-9 89.51?
- The GEMs map 89.51 to ICD-10-PCS 4A02XFZ.
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.