ICD-9-CM procedure code (retired)
89.55 — Phonocardiogram with ECG lead
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 89.55
89.55 is an ICD-9-CM procedure code for Phonocardiogram with ECG lead. 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 2 ICD-10-PCS codes, such as 4A023HZ (Measurement of Cardiac Sound, Percutaneous Approach) and 4A02XHZ (Measurement of Cardiac Sound, External Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 89.55
What is the ICD-10 code for ICD-9 89.55?
- The GEMs map 89.55 to ICD-10-PCS 4A023HZ and 4A02XHZ.
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.