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ICD-10-PCS 2027 procedure code

00BY0ZXExcision of Lumbar Spinal Cord, Open Approach, Diagnostic

✓ 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 00BY0ZX

00BY0ZX is the ICD-10-PCS code for a excision procedure on the lumbar spinal cord using an open approach (qualifier: diagnostic). In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.

In plain terms, this corresponds to biopsy of spinal cord or spinal meninges, the ICD-9-CM procedure title it maps to (03.32).

For a different body part, codes include 00B00ZX (brain), 00B10ZX (cerebral meninges), 00B20ZX (dura mater), 00B60ZX (cerebral ventricle), 00B70ZX (cerebral hemisphere), 00B80ZX (basal ganglia) and 20 more.

The same procedure with a different approach is coded 00BY3ZX (percutaneous) and 00BY4ZX (percutaneous endoscopic).

It is an operating-room procedure in the MS-DRG logic for DRG 028 (Spinal Procedures with MCC), DRG 029 (Spinal Procedures with CC or Spinal Neurostimulators), DRG 030 (Spinal Procedures without CC/MCC), DRG 518 (Back and Neck Procedures Except Spinal Fusion with MCC or Disc Device or Neurostimulator), DRG 519 (Back and Neck Procedures Except Spinal Fusion with CC) and DRG 520 (Back and Neck Procedures Except Spinal Fusion without CC/MCC), under the surgical categories “Spinal Procedures”, “Back and Neck Procedures Except Spinal Fusion or Disc Device or Neurostimulator”, “Lymphoma and Leukemia with Major 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
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
YLumbar Spinal Cord

Includes: Cauda equina; Conus medullaris; Dorsal root ganglion

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
XDiagnostic

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 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue · Back and Neck Procedures Except Spinal Fusion or Disc Device or Neurostimulator

ICD-9-CM equivalent

Converter →
  • 03.32Biopsy of spinal cord or spinal meningesapproximate

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 00BY0ZX

Is 00BY0ZX a valid ICD-10-PCS code for 2027?

Yes. 00BY0ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 00BY0ZX an O.R. procedure?

Yes. 00BY0ZX is an O.R. procedure in MS-DRG v44.0.

What DRG does 00BY0ZX group to?

Depending on the principal diagnosis, 00BY0ZX can group to MS-DRG 028, MS-DRG 029, MS-DRG 030, MS-DRG 518, MS-DRG 519 and MS-DRG 520.

What is the ICD-9 procedure code for 00BY0ZX?

The CMS GEMs map 00BY0ZX to ICD-9-CM 03.32 (Biopsy of spinal cord or spinal meninges).