ICD-9-CM procedure code (retired)
20.99 — Other operations on 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 20.99
20.99 is an ICD-9-CM procedure code for other operations on 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 68 ICD-10-PCS codes, such as 09HH0YZ (Insertion of Other Device into Right Ear, Open Approach), 09HH3YZ (Insertion of Other Device into Right Ear, Percutaneous Approach) and 09HH4YZ (Insertion of Other Device into Right Ear, Percutaneous Endoscopic Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 09HH0YZInsertion of Other Device into Right Ear, Open Approachapproximate
- 09HH3YZInsertion of Other Device into Right Ear, Percutaneous Approachapproximate
- 09HH4YZInsertion of Other Device into Right Ear, Percutaneous Endoscopic Approachapproximate
- 09HJ0YZInsertion of Other Device into Left Ear, Open Approachapproximate
- 09HJ3YZInsertion of Other Device into Left Ear, Percutaneous Approachapproximate
- 09HJ4YZInsertion of Other Device into Left Ear, Percutaneous Endoscopic Approachapproximate
- 09NB8ZZRelease Right Mastoid Sinus, Via Natural or Artificial Opening Endoscopicapproximate
- 09NC8ZZRelease Left Mastoid Sinus, Via Natural or Artificial Opening Endoscopicapproximate
- 09PD0SZRemoval of Hearing Device from Right Inner Ear, Open Approachapproximate
- 09PD7SZRemoval of Hearing Device from Right Inner Ear, Via Natural or Artificial Openingapproximate
- 09PD8SZRemoval of Hearing Device from Right Inner Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09PE0SZRemoval of Hearing Device from Left Inner Ear, Open Approachapproximate
- 09PE7SZRemoval of Hearing Device from Left Inner Ear, Via Natural or Artificial Openingapproximate
- 09PE8SZRemoval of Hearing Device from Left Inner Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09PH00ZRemoval of Drainage Device from Right Ear, Open Approachapproximate
- 09PH07ZRemoval of Autologous Tissue Substitute from Right Ear, Open Approachapproximate
- 09PH0DZRemoval of Intraluminal Device from Right Ear, Open Approachapproximate
- 09PH0JZRemoval of Synthetic Substitute from Right Ear, Open Approachapproximate
- 09PH0KZRemoval of Nonautologous Tissue Substitute from Right Ear, Open Approachapproximate
- 09PH0YZRemoval of Other Device from Right Ear, Open Approachapproximate
- 09PH37ZRemoval of Autologous Tissue Substitute from Right Ear, Percutaneous Approachapproximate
- 09PH3DZRemoval of Intraluminal Device from Right Ear, Percutaneous Approachapproximate
- 09PH47ZRemoval of Autologous Tissue Substitute from Right Ear, Percutaneous Endoscopic Approachapproximate
- 09PH4DZRemoval of Intraluminal Device from Right Ear, Percutaneous Endoscopic Approachapproximate
- 09PH77ZRemoval of Autologous Tissue Substitute from Right Ear, Via Natural or Artificial Openingapproximate
- 09PH7JZRemoval of Synthetic Substitute from Right Ear, Via Natural or Artificial Openingapproximate
- 09PH7KZRemoval of Nonautologous Tissue Substitute from Right Ear, Via Natural or Artificial Openingapproximate
- 09PH87ZRemoval of Autologous Tissue Substitute from Right Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09PH8JZRemoval of Synthetic Substitute from Right Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09PH8KZRemoval of Nonautologous Tissue Substitute from Right Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09PJ00ZRemoval of Drainage Device from Left Ear, Open Approachapproximate
- 09PJ07ZRemoval of Autologous Tissue Substitute from Left Ear, Open Approachapproximate
- 09PJ0DZRemoval of Intraluminal Device from Left Ear, Open Approachapproximate
- 09PJ0JZRemoval of Synthetic Substitute from Left Ear, Open Approachapproximate
- 09PJ0KZRemoval of Nonautologous Tissue Substitute from Left Ear, Open Approachapproximate
- 09PJ0YZRemoval of Other Device from Left Ear, Open Approachapproximate
- 09PJ37ZRemoval of Autologous Tissue Substitute from Left Ear, Percutaneous Approachapproximate
- 09PJ3DZRemoval of Intraluminal Device from Left Ear, Percutaneous Approachapproximate
- 09PJ47ZRemoval of Autologous Tissue Substitute from Left Ear, Percutaneous Endoscopic Approachapproximate
- 09PJ4DZRemoval of Intraluminal Device from Left Ear, Percutaneous Endoscopic Approachapproximate
- 09PJ77ZRemoval of Autologous Tissue Substitute from Left Ear, Via Natural or Artificial Openingapproximate
- 09PJ7JZRemoval of Synthetic Substitute from Left Ear, Via Natural or Artificial Openingapproximate
- 09PJ7KZRemoval of Nonautologous Tissue Substitute from Left Ear, Via Natural or Artificial Openingapproximate
- 09PJ87ZRemoval of Autologous Tissue Substitute from Left Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09PJ8JZRemoval of Synthetic Substitute from Left Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09PJ8KZRemoval of Nonautologous Tissue Substitute from Left Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09QD0ZZRepair Right Inner Ear, Open Approachapproximate
- 09QD8ZZRepair Right Inner Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09QE0ZZRepair Left Inner Ear, Open Approachapproximate
- 09QE8ZZRepair Left Inner Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09UD87ZSupplement Right Inner Ear with Autologous Tissue Substitute, Via Natural or Artificial Opening Endoscopicapproximate
- 09UD8JZSupplement Right Inner Ear with Synthetic Substitute, Via Natural or Artificial Opening Endoscopicapproximate
- 09UD8KZSupplement Right Inner Ear with Nonautologous Tissue Substitute, Via Natural or Artificial Opening Endoscopicapproximate
- 09UE87ZSupplement Left Inner Ear with Autologous Tissue Substitute, Via Natural or Artificial Opening Endoscopicapproximate
- 09UE8JZSupplement Left Inner Ear with Synthetic Substitute, Via Natural or Artificial Opening Endoscopicapproximate
- 09UE8KZSupplement Left Inner Ear with Nonautologous Tissue Substitute, Via Natural or Artificial Opening Endoscopicapproximate
- 09WD0SZRevision of Hearing Device in Right Inner Ear, Open Approachapproximate
- 09WD7SZRevision of Hearing Device in Right Inner Ear, Via Natural or Artificial Openingapproximate
- 09WD8SZRevision of Hearing Device in Right Inner Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09WE0SZRevision of Hearing Device in Left Inner Ear, Open Approachapproximate
- 09WE7SZRevision of Hearing Device in Left Inner Ear, Via Natural or Artificial Openingapproximate
- 09WE8SZRevision of Hearing Device in Left Inner Ear, Via Natural or Artificial Opening Endoscopicapproximate
- 09WH0YZRevision of Other Device in Right Ear, Open Approachapproximate
- 09WH3YZRevision of Other Device in Right Ear, Percutaneous Approachapproximate
- 09WH4YZRevision of Other Device in Right Ear, Percutaneous Endoscopic Approachapproximate
- 09WJ0YZRevision of Other Device in Left Ear, Open Approachapproximate
- 09WJ3YZRevision of Other Device in Left Ear, Percutaneous Approachapproximate
- 09WJ4YZRevision of Other Device in Left Ear, Percutaneous Endoscopic Approachapproximate
Common questions about 20.99
What is the ICD-10 code for ICD-9 20.99?
- The GEMs map 20.99 to ICD-10-PCS 09HH0YZ, 09HH3YZ, 09HH4YZ, 09HJ0YZ, 09HJ3YZ, 09HJ4YZ and 62 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.