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ICD-10-PCS 2027 procedure code

09BN4ZZExcision of Nasopharynx, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

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 09BN4ZZ

09BN4ZZ is the ICD-10-PCS code for a excision procedure on the nasopharynx using a percutaneous endoscopic 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 Pharyngectomy (partial) and other excision or destruction of lesion or tissue of pharynx, the ICD-9-CM procedure titles it maps to (29.33 and 29.39).

For a different body part, codes include 09B04ZZ (right external ear), 09B14ZZ (left external ear), 09B34ZZ (right external auditory canal), 09B44ZZ (left external auditory canal), 09B74ZZ (right tympanic membrane), 09B84ZZ (left tympanic membrane) and 16 more.

The same procedure with a different approach is coded 09BN0ZZ (open), 09BN3ZZ (percutaneous), 09BN7ZZ (via natural or artificial opening) and 09BN8ZZ (via natural or artificial opening endoscopic).

It is an operating-room procedure in the MS-DRG logic for DRG 143 (Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC), DRG 144 (Other Ear, Nose, Mouth and Throat O.R. Procedures with CC), DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), DRG 326 (Stomach, Esophageal and Duodenal Procedures with MCC), DRG 327 (Stomach, Esophageal and Duodenal Procedures with CC) and DRG 328 (Stomach, Esophageal and Duodenal Procedures without CC/MCC), under the surgical categories “Other Ear, Nose, Mouth and Throat O.R. Procedures” and “Stomach, Esophageal and Duodenal Procedures”.

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
NNasopharynx

Includes: Choana; Fossa of Rosenmuller; Pharyngeal recess; Rhinopharynx

5. Approach
4Percutaneous Endoscopic

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

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different qualifier

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

ICD-9-CM equivalent

Converter →
  • 29.33Pharyngectomy (partial)approximate
  • 29.39Other excision or destruction of lesion or tissue of pharynxapproximate

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 09BN4ZZ

Is 09BN4ZZ a valid ICD-10-PCS code for 2027?

Yes. 09BN4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 09BN4ZZ an O.R. procedure?

Yes. 09BN4ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 09BN4ZZ group to?

Depending on the principal diagnosis, 09BN4ZZ can group to MS-DRG 143, MS-DRG 144, MS-DRG 145, MS-DRG 326, MS-DRG 327 and MS-DRG 328.

What is the ICD-9 procedure code for 09BN4ZZ?

The CMS GEMs map 09BN4ZZ to ICD-9-CM 29.33 (Pharyngectomy (partial)) and 29.39 (Other excision or destruction of lesion or tissue of pharynx).