ICD-9-CM procedure code (retired)
20.51 — Excision of lesion of middle 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 20.51
20.51 is an ICD-9-CM procedure code for excision of lesion of middle 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 14 ICD-10-PCS codes, such as 09B50ZZ (Excision of Right Middle Ear, Open Approach), 09B58ZZ (Excision of Right Middle Ear, Via Natural or Artificial Opening Endoscopic) and 09B60ZZ (Excision of Left Middle Ear, Open Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 09B50ZZExcision of Right Middle Ear, Open Approachapproximate
- 09B58ZZExcision of Right Middle Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09B60ZZExcision of Left Middle Ear, Open Approachapproximate
- 09B68ZZExcision of Left Middle Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09B70ZZExcision of Right Tympanic Membrane, Open Approachapproximate
- 09B73ZZExcision of Right Tympanic Membrane, Percutaneous Approachapproximate
- 09B74ZZExcision of Right Tympanic Membrane, Percutaneous Endoscopic Approachapproximate
- 09B77ZZExcision of Right Tympanic Membrane, Via Natural or Artificial Openingapproximate
- 09B78ZZExcision of Right Tympanic Membrane, Via Natural or Artificial Opening Endoscopicapproximate
- 09B80ZZExcision of Left Tympanic Membrane, Open Approachapproximate
- 09B83ZZExcision of Left Tympanic Membrane, Percutaneous Approachapproximate
- 09B84ZZExcision of Left Tympanic Membrane, Percutaneous Endoscopic Approachapproximate
- 09B87ZZExcision of Left Tympanic Membrane, Via Natural or Artificial Openingapproximate
- 09B88ZZExcision of Left Tympanic Membrane, Via Natural or Artificial Opening Endoscopicapproximate
Common questions about 20.51
What is the ICD-10 code for ICD-9 20.51?
- The GEMs map 20.51 to ICD-10-PCS 09B50ZZ, 09B58ZZ, 09B60ZZ, 09B68ZZ, 09B70ZZ, 09B73ZZ and 8 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.