ICD-9-CM procedure code (retired)
04.43 — Release of carpal tunnel
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 04.43
04.43 is an ICD-9-CM procedure code for release of carpal tunnel. 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 01N50ZZ (Release Median Nerve, Open Approach), 01N53ZZ (Release Median Nerve, Percutaneous Approach) and 01N54ZZ (Release Median Nerve, Percutaneous Endoscopic Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 04.43
What is the ICD-10 code for ICD-9 04.43?
- The GEMs map 04.43 to ICD-10-PCS 01N50ZZ, 01N53ZZ and 01N54ZZ.
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.