ICD-9-CM procedure code (retired)
20.32 — Biopsy of middle and inner ear
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 20.32
20.32 is an ICD-9-CM procedure code for biopsy of middle and inner ear. 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 32 ICD-10-PCS codes, such as 09950ZX (Drainage of Right Middle Ear, Open Approach, Diagnostic), 09957ZX (Drainage of Right Middle Ear, Via Natural or Artificial Opening, Diagnostic) and 09958ZX (Drainage of Right Middle Ear, Via Natural or Artificial Opening Endoscopic, Diagnostic). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 09950ZXDrainage of Right Middle Ear, Open Approach, Diagnosticapproximate
- 09957ZXDrainage of Right Middle Ear, Via Natural or Artificial Opening, Diagnosticapproximate
- 09958ZXDrainage of Right Middle Ear, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 09960ZXDrainage of Left Middle Ear, Open Approach, Diagnosticapproximate
- 09967ZXDrainage of Left Middle Ear, Via Natural or Artificial Opening, Diagnosticapproximate
- 09968ZXDrainage of Left Middle Ear, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 09997ZXDrainage of Right Auditory Ossicle, Via Natural or Artificial Opening, Diagnosticapproximate
- 09998ZXDrainage of Right Auditory Ossicle, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 099A7ZXDrainage of Left Auditory Ossicle, Via Natural or Artificial Opening, Diagnosticapproximate
- 099A8ZXDrainage of Left Auditory Ossicle, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 099B7ZXDrainage of Right Mastoid Sinus, Via Natural or Artificial Opening, Diagnosticapproximate
- 099B8ZXDrainage of Right Mastoid Sinus, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 099C7ZXDrainage of Left Mastoid Sinus, Via Natural or Artificial Opening, Diagnosticapproximate
- 099C8ZXDrainage of Left Mastoid Sinus, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 099D0ZXDrainage of Right Inner Ear, Open Approach, Diagnosticapproximate
- 099D7ZXDrainage of Right Inner Ear, Via Natural or Artificial Opening, Diagnosticapproximate
- 099D8ZXDrainage of Right Inner Ear, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 099E0ZXDrainage of Left Inner Ear, Open Approach, Diagnosticapproximate
- 099E7ZXDrainage of Left Inner Ear, Via Natural or Artificial Opening, Diagnosticapproximate
- 099E8ZXDrainage of Left Inner Ear, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 09B50ZXExcision of Right Middle Ear, Open Approach, Diagnosticapproximate
- 09B58ZXExcision of Right Middle Ear, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 09B60ZXExcision of Left Middle Ear, Open Approach, Diagnosticapproximate
- 09B68ZXExcision of Left Middle Ear, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 09B98ZXExcision of Right Auditory Ossicle, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 09BA8ZXExcision of Left Auditory Ossicle, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 09BB8ZXExcision of Right Mastoid Sinus, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 09BC8ZXExcision of Left Mastoid Sinus, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 09BD0ZXExcision of Right Inner Ear, Open Approach, Diagnosticapproximate
- 09BD8ZXExcision of Right Inner Ear, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
- 09BE0ZXExcision of Left Inner Ear, Open Approach, Diagnosticapproximate
- 09BE8ZXExcision of Left Inner Ear, Via Natural or Artificial Opening Endoscopic, Diagnosticapproximate
Common questions about 20.32
What is the ICD-10 code for ICD-9 20.32?
- The GEMs map 20.32 to ICD-10-PCS 09950ZX, 09957ZX, 09958ZX, 09960ZX, 09967ZX, 09968ZX and 26 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.