ICD-9-CM procedure code (retired)
49.51 — Left lateral anal sphincterotomy
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 49.51
49.51 is an ICD-9-CM procedure code for left lateral anal sphincterotomy. 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 0D8R0ZZ (Division of Anal Sphincter, Open Approach) and 0D8R3ZZ (Division of Anal Sphincter, Percutaneous Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 49.51
What is the ICD-10 code for ICD-9 49.51?
- The GEMs map 49.51 to ICD-10-PCS 0D8R0ZZ and 0D8R3ZZ.
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.