ICD-9-CM procedure code (retired)
18.9 — Other operations on external 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 18.9
18.9 is an ICD-9-CM procedure code for other operations on 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 22 ICD-10-PCS codes, such as 09Q00ZZ (Repair Right External Ear, Open Approach), 09Q03ZZ (Repair Right External Ear, Percutaneous Approach) and 09Q04ZZ (Repair Right External Ear, Percutaneous Endoscopic Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 09Q00ZZRepair Right External Ear, Open Approachapproximate
- 09Q03ZZRepair Right External Ear, Percutaneous Approachapproximate
- 09Q04ZZRepair Right External Ear, Percutaneous Endoscopic Approachapproximate
- 09Q0XZZRepair Right External Ear, External Approachapproximate
- 09Q10ZZRepair Left External Ear, Open Approachapproximate
- 09Q13ZZRepair Left External Ear, Percutaneous Approachapproximate
- 09Q14ZZRepair Left External Ear, Percutaneous Endoscopic Approachapproximate
- 09Q1XZZRepair Left External Ear, External Approachapproximate
- 09Q20ZZRepair Bilateral External Ear, Open Approachapproximate
- 09Q23ZZRepair Bilateral External Ear, Percutaneous Approachapproximate
- 09Q24ZZRepair Bilateral External Ear, Percutaneous Endoscopic Approachapproximate
- 09Q2XZZRepair Bilateral External Ear, External Approachapproximate
- 09Q30ZZRepair Right External Auditory Canal, Open Approachapproximate
- 09Q33ZZRepair Right External Auditory Canal, Percutaneous Approachapproximate
- 09Q34ZZRepair Right External Auditory Canal, Percutaneous Endoscopic Approachapproximate
- 09Q37ZZRepair Right External Auditory Canal, Via Natural or Artificial Openingapproximate
- 09Q38ZZRepair Right External Auditory Canal, Via Natural or Artificial Opening Endoscopicapproximate
- 09Q40ZZRepair Left External Auditory Canal, Open Approachapproximate
- 09Q43ZZRepair Left External Auditory Canal, Percutaneous Approachapproximate
- 09Q44ZZRepair Left External Auditory Canal, Percutaneous Endoscopic Approachapproximate
- 09Q47ZZRepair Left External Auditory Canal, Via Natural or Artificial Openingapproximate
- 09Q48ZZRepair Left External Auditory Canal, Via Natural or Artificial Opening Endoscopicapproximate
Common questions about 18.9
What is the ICD-10 code for ICD-9 18.9?
- The GEMs map 18.9 to ICD-10-PCS 09Q00ZZ, 09Q03ZZ, 09Q04ZZ, 09Q0XZZ, 09Q10ZZ, 09Q13ZZ and 16 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.