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ICD-10-PCS 2027 procedure code

0NBB4ZZExcision of Nasal Bone, 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 0NBB4ZZ

0NBB4ZZ is the ICD-10-PCS code for a excision procedure on the nasal bone 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 local excision or destruction of other lesion of nose, the ICD-9-CM procedure title it maps to (21.32).

For a different body part, codes include 0NB04ZZ (skull), 0NB14ZZ (frontal bone), 0NB34ZZ (right parietal bone), 0NB44ZZ (left parietal bone), 0NB54ZZ (right temporal bone), 0NB64ZZ (left temporal bone) and 16 more.

The same procedure with a different approach is coded 0NBB0ZZ (open) and 0NBB3ZZ (percutaneous).

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 515 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with MCC), DRG 516 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with CC) and DRG 517 (Other Musculoskeletal System and Connective Tissue O.R. Procedures without CC/MCC), under the surgical categories “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “Other Musculoskeletal System and Connective Tissue O.R. Procedures”, “Other O.R. Procedures for Injuries” and 1 more.

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
NHead and Facial Bones
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
BNasal Bone

Includes: Vomer of nasal septum

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 →
  • 21.32Local excision or destruction of other lesion of noseapproximate

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 0NBB4ZZ

Is 0NBB4ZZ a valid ICD-10-PCS code for 2027?

Yes. 0NBB4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0NBB4ZZ an O.R. procedure?

Yes. 0NBB4ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0NBB4ZZ group to?

Depending on the principal diagnosis, 0NBB4ZZ can group to MS-DRG 143, MS-DRG 144, MS-DRG 145, MS-DRG 515, MS-DRG 516 and MS-DRG 517.

What is the ICD-9 procedure code for 0NBB4ZZ?

The CMS GEMs map 0NBB4ZZ to ICD-9-CM 21.32 (Local excision or destruction of other lesion of nose).