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ICD-10-PCS 2027 procedure code

09B33ZZExcision of Right External Auditory Canal, Percutaneous Approach

✓ Valid for 2027

Short description: Excision of Right External Auditory Canal, Perc Approach

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 09B33ZZ

09B33ZZ is the ICD-10-PCS code for a excision procedure on the right external auditory canal using a percutaneous approach. In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.

In plain terms, this corresponds to excision or destruction of other lesion of external ear, the ICD-9-CM procedure title it maps to (18.29).

For a different body part, codes include 09B03ZZ (right external ear), 09B13ZZ (left external ear), 09B43ZZ (left external auditory canal), 09B73ZZ (right tympanic membrane), 09B83ZZ (left tympanic membrane), 09BB3ZZ (right mastoid sinus) and 16 more.

The same procedure with a different approach is coded 09B30ZZ (open), 09B34ZZ (percutaneous endoscopic), 09B37ZZ (via natural or artificial opening), 09B38ZZ (via natural or artificial opening endoscopic) and 09B3XZZ (external).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
0Medical and Surgical
2. Body System
9Ear, Nose, Sinus
3. Operation
BExcision

Cutting out or off, without replacement, a portion of a body part

The qualifier DIAGNOSTIC is used to identify excision procedures that are biopsies

Includes: Partial nephrectomy, liver biopsy

4. Body Part
3External Auditory Canal, Right
5. Approach
3Percutaneous

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different qualifier

ICD-9-CM equivalent

Converter →
  • 18.29Excision or destruction of other lesion of external earapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 09B33ZZ

Is 09B33ZZ a valid ICD-10-PCS code for 2027?

Yes. 09B33ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 09B33ZZ?

The CMS GEMs map 09B33ZZ to ICD-9-CM 18.29 (Excision or destruction of other lesion of external ear).