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ICD-10-PCS 2027 procedure code

0WB00ZZExcision of Head, 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 0WB00ZZ

0WB00ZZ is the ICD-10-PCS code for a excision procedure on the head using an open 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 radical excision of skin lesion, the ICD-9-CM procedure title it maps to (86.4).

For a different body part, codes include 0WB20ZZ (face), 0WB30ZZ (oral cavity and throat), 0WB40ZZ (upper jaw), 0WB50ZZ (lower jaw), 0WB60ZZ (neck), 0WB80ZZ (chest wall) and 7 more.

The same procedure with a different approach is coded 0WB03ZZ (percutaneous), 0WB04ZZ (percutaneous endoscopic) and 0WB0XZZ (external).

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 115 (Extraocular Procedures Except Orbit), DRG 143 (Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC) and DRG 144 (Other Ear, Nose, Mouth and Throat O.R. Procedures with CC), under the surgical categories “Peripheral, Cranial Nerve and Other Nervous System Procedures”, “Extraocular Procedures Except Orbit”, “Other Ear, Nose, Mouth and Throat O.R. Procedures” and 5 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
WAnatomical Regions, General
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
0Head
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

Different qualifier

MS-DRG v44.0 grouping

All DRGs →

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

MDC 02 · Diseases and Disorders of the Eye · Extraocular Procedures Except Orbit

MDC 05 · Diseases and Disorders of the Circulatory System · Other Circulatory System O.R. Procedures

MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue · Soft Tissue Procedures

ICD-9-CM equivalent

Converter →
  • 86.4Radical excision of skin lesionapproximate

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 0WB00ZZ

Is 0WB00ZZ a valid ICD-10-PCS code for 2027?

Yes. 0WB00ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WB00ZZ an O.R. procedure?

Yes. 0WB00ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0WB00ZZ group to?

Depending on the principal diagnosis, 0WB00ZZ can group to MS-DRG 040, MS-DRG 041, MS-DRG 042, MS-DRG 115, MS-DRG 143 and MS-DRG 144.

What is the ICD-9 procedure code for 0WB00ZZ?

The CMS GEMs map 0WB00ZZ to ICD-9-CM 86.4 (Radical excision of skin lesion).