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ICD-9-CM procedure code (retired)

37.26 — Catheter based invasive electrophysiologic testing

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 37.26

37.26 is an ICD-9-CM procedure code for catheter based invasive electrophysiologic testing. 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 3 ICD-10-PCS codes, such as 3E053KZ (Introduction of Other Diagnostic Substance into Peripheral Artery, Percutaneous Approach), 3E063KZ (Introduction of Other Diagnostic Substance into Central Artery, Percutaneous Approach) and 4A023FZ (Measurement of Cardiac Rhythm, Percutaneous Approach). All of these are approximate matches, so review the record to pick the right one. Some mappings are combinations: more than one ICD-10 code is needed to fully express the ICD-9 code.

ICD-10-PCS equivalents

Common questions about 37.26

What is the ICD-10 code for ICD-9 37.26?

The GEMs map 37.26 to ICD-10-PCS 3E053KZ, 3E063KZ and 4A023FZ.

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.