ICD-9-CM procedure code (retired)
84.66 — Revision or replacement of artificial spinal disc prosthesis, cervical
About ICD-9-CM 84.66
84.66 is an ICD-9-CM procedure code for revision or replacement of artificial spinal disc prosthesis, cervical. 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 10 ICD-10-PCS codes, such as 0RP30JZ (Removal of Synthetic Substitute from Cervical Vertebral Disc, Open Approach), 0RP50JZ (Removal of Synthetic Substitute from Cervicothoracic Vertebral Disc, Open Approach) and 0RR30JZ (Replacement of Cervical Vertebral Disc with Synthetic Substitute, Open 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
- 0RP30JZRemoval of Synthetic Substitute from Cervical Vertebral Disc, Open Approachapproximate · combination (scenario 1, choice 1)
- 0RP50JZRemoval of Synthetic Substitute from Cervicothoracic Vertebral Disc, Open Approachapproximate · combination (scenario 2, choice 1)
- 0RR30JZReplacement of Cervical Vertebral Disc with Synthetic Substitute, Open Approachapproximate · combination (scenario 1, choice 2)
- 0RR50JZReplacement of Cervicothoracic Vertebral Disc with Synthetic Substitute, Open Approachapproximate · combination (scenario 2, choice 2)
- 0RW30JZRevision of Synthetic Substitute in Cervical Vertebral Disc, Open Approachapproximate
- 0RW33JZRevision of Synthetic Substitute in Cervical Vertebral Disc, Percutaneous Approachapproximate
- 0RW34JZRevision of Synthetic Substitute in Cervical Vertebral Disc, Percutaneous Endoscopic Approachapproximate
- 0RW50JZRevision of Synthetic Substitute in Cervicothoracic Vertebral Disc, Open Approachapproximate
- 0RW53JZRevision of Synthetic Substitute in Cervicothoracic Vertebral Disc, Percutaneous Approachapproximate
- 0RW54JZRevision of Synthetic Substitute in Cervicothoracic Vertebral Disc, Percutaneous Endoscopic Approachapproximate
Common questions about 84.66
What is the ICD-10 code for ICD-9 84.66?
- The GEMs map 84.66 to ICD-10-PCS 0RP30JZ, 0RP50JZ, 0RR30JZ, 0RR50JZ, 0RW30JZ, 0RW33JZ and 4 more.
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.