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ICD-10-PCS 2027 procedure code

00DF0ZZExtraction of Olfactory Nerve, Open 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 00DF0ZZ

00DF0ZZ is the ICD-10-PCS code for a extraction procedure on the olfactory nerve using an open approach. In ICD-10-PCS, extraction means pulling or stripping out or off all or a portion of a body part by the use of force.

In plain terms, this corresponds to other excision or avulsion of cranial and peripheral nerves, the ICD-9-CM procedure title it maps to (04.07).

For a different body part, codes include 00D00ZZ (brain), 00D10ZZ (cerebral meninges), 00D20ZZ (dura mater), 00D70ZZ (cerebral hemisphere), 00DC0ZZ (cerebellum), 00DG0ZZ (optic nerve) and 11 more.

The same procedure with a different approach is coded 00DF3ZZ (percutaneous) and 00DF4ZZ (percutaneous endoscopic).

It is an operating-room procedure in the MS-DRG logic for DRG 040 (Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC), DRG 041 (Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator), DRG 042 (Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC), 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) and DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), under the surgical categories “Peripheral, Cranial Nerve and Other Nervous System Procedures”, “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “Other Musculoskeletal System and Connective Tissue O.R. Procedures” 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
0Central Nervous System and Cranial Nerves
3. Operation
DExtraction

Pulling or stripping out or off all or a portion of a body part by the use of force

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

Includes: Dilation and curettage, vein stripping

4. Body Part
FOlfactory Nerve

Includes: First cranial nerve; Olfactory bulb

5. Approach
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

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 →
  • 04.07Other excision or avulsion of cranial and peripheral nervesapproximate

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 00DF0ZZ

Is 00DF0ZZ a valid ICD-10-PCS code for 2027?

Yes. 00DF0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 00DF0ZZ an O.R. procedure?

Yes. 00DF0ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 00DF0ZZ group to?

Depending on the principal diagnosis, 00DF0ZZ can group to MS-DRG 040, MS-DRG 041, MS-DRG 042, MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 00DF0ZZ?

The CMS GEMs map 00DF0ZZ to ICD-9-CM 04.07 (Other excision or avulsion of cranial and peripheral nerves).