ICD-9-CM procedure code (retired)
03.21 — Percutaneous chordotomy
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 03.21
03.21 is an ICD-9-CM procedure code for percutaneous chordotomy. 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 6 ICD-10-PCS codes, such as 008W3ZZ (Division of Cervical Spinal Cord, Percutaneous Approach), 008W4ZZ (Division of Cervical Spinal Cord, Percutaneous Endoscopic Approach) and 008X3ZZ (Division of Thoracic Spinal Cord, Percutaneous Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 008W3ZZDivision of Cervical Spinal Cord, Percutaneous Approachapproximate
- 008W4ZZDivision of Cervical Spinal Cord, Percutaneous Endoscopic Approachapproximate
- 008X3ZZDivision of Thoracic Spinal Cord, Percutaneous Approachapproximate
- 008X4ZZDivision of Thoracic Spinal Cord, Percutaneous Endoscopic Approachapproximate
- 008Y3ZZDivision of Lumbar Spinal Cord, Percutaneous Approachapproximate
- 008Y4ZZDivision of Lumbar Spinal Cord, Percutaneous Endoscopic Approachapproximate
Common questions about 03.21
What is the ICD-10 code for ICD-9 03.21?
- The GEMs map 03.21 to ICD-10-PCS 008W3ZZ, 008W4ZZ, 008X3ZZ, 008X4ZZ, 008Y3ZZ and 008Y4ZZ.
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.