ICD-9-CM procedure code (retired)
06.91 — Division of thyroid isthmus
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 06.91
06.91 is an ICD-9-CM procedure code for division of thyroid isthmus. 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 0G8J0ZZ (Division of Thyroid Gland Isthmus, Open Approach), 0G8J3ZZ (Division of Thyroid Gland Isthmus, Percutaneous Approach) and 0G8J4ZZ (Division of Thyroid Gland Isthmus, 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 06.91
What is the ICD-10 code for ICD-9 06.91?
- The GEMs map 06.91 to ICD-10-PCS 0G8J0ZZ, 0G8J3ZZ and 0G8J4ZZ.
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.