ICD-9-CM procedure code (retired)
18.09 — Other incision of external ear
About ICD-9-CM 18.09
18.09 is an ICD-9-CM procedure code for other incision of external 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 28 ICD-10-PCS codes, such as 099000Z (Drainage of Right External Ear with Drainage Device, Open Approach), 09900ZZ (Drainage of Right External Ear, Open Approach) and 099030Z (Drainage of Right External Ear with Drainage Device, Percutaneous Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 099000ZDrainage of Right External Ear with Drainage Device, Open Approachapproximate
- 09900ZZDrainage of Right External Ear, Open Approachapproximate
- 099030ZDrainage of Right External Ear with Drainage Device, Percutaneous Approachapproximate
- 09903ZZDrainage of Right External Ear, Percutaneous Approachapproximate
- 099040ZDrainage of Right External Ear with Drainage Device, Percutaneous Endoscopic Approachapproximate
- 09904ZZDrainage of Right External Ear, Percutaneous Endoscopic Approachapproximate
- 0990X0ZDrainage of Right External Ear with Drainage Device, External Approachapproximate
- 0990XZZDrainage of Right External Ear, External Approachapproximate
- 099100ZDrainage of Left External Ear with Drainage Device, Open Approachapproximate
- 09910ZZDrainage of Left External Ear, Open Approachapproximate
- 099130ZDrainage of Left External Ear with Drainage Device, Percutaneous Approachapproximate
- 09913ZZDrainage of Left External Ear, Percutaneous Approachapproximate
- 099140ZDrainage of Left External Ear with Drainage Device, Percutaneous Endoscopic Approachapproximate
- 09914ZZDrainage of Left External Ear, Percutaneous Endoscopic Approachapproximate
- 0991X0ZDrainage of Left External Ear with Drainage Device, External Approachapproximate
- 0991XZZDrainage of Left External Ear, External Approachapproximate
- 09C00ZZExtirpation of Matter from Right External Ear, Open Approachapproximate
- 09C03ZZExtirpation of Matter from Right External Ear, Percutaneous Approachapproximate
- 09C04ZZExtirpation of Matter from Right External Ear, Percutaneous Endoscopic Approachapproximate
- 09C10ZZExtirpation of Matter from Left External Ear, Open Approachapproximate
- 09C13ZZExtirpation of Matter from Left External Ear, Percutaneous Approachapproximate
- 09C14ZZExtirpation of Matter from Left External Ear, Percutaneous Endoscopic Approachapproximate
- 0H82XZZDivision of Right Ear Skin, External Approachapproximate
- 0H83XZZDivision of Left Ear Skin, External Approachapproximate
- 0H92X0ZDrainage of Right Ear Skin with Drainage Device, External Approachapproximate
- 0H92XZZDrainage of Right Ear Skin, External Approachapproximate
- 0H93X0ZDrainage of Left Ear Skin with Drainage Device, External Approachapproximate
- 0H93XZZDrainage of Left Ear Skin, External Approachapproximate
Common questions about 18.09
What is the ICD-10 code for ICD-9 18.09?
- The GEMs map 18.09 to ICD-10-PCS 099000Z, 09900ZZ, 099030Z, 09903ZZ, 099040Z, 09904ZZ and 22 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.