Skip to content
Dx

ICD-10-PCS 2027 procedure code

0N8B4ZZDivision of Nasal Bone, Percutaneous Endoscopic Approach

✓ Valid for 2027

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 0N8B4ZZ

0N8B4ZZ is the ICD-10-PCS code for a division procedure on the nasal bone using a percutaneous endoscopic approach. In ICD-10-PCS, division means cutting into a body part, without draining fluids and/or gases from the body part, in order to separate or transect a body part.

In plain terms, this corresponds to incision of nose, the ICD-9-CM procedure title it maps to (21.1).

For a different body part, codes include 0N804ZZ (skull), 0N814ZZ (frontal bone), 0N834ZZ (right parietal bone), 0N844ZZ (left parietal bone), 0N854ZZ (right temporal bone), 0N864ZZ (left temporal bone) and 16 more.

The same procedure with a different approach is coded 0N8B0ZZ (open) and 0N8B3ZZ (percutaneous).

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
NHead and Facial Bones
3. Operation
8Division

Cutting into a body part, without draining fluids and/or gases from the body part, in order to separate or transect a body part

All or a portion of the body part is separated into two or more portions

Includes: Spinal cordotomy, osteotomy

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

ICD-9-CM equivalent

Converter →
  • 21.1Incision 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 0N8B4ZZ

Is 0N8B4ZZ a valid ICD-10-PCS code for 2027?

Yes. 0N8B4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0N8B4ZZ?

The CMS GEMs map 0N8B4ZZ to ICD-9-CM 21.1 (Incision of nose).