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ICD-10-PCS 2027 procedure code

0S9N0ZZDrainage of Left Metatarsal-Phalangeal Joint, 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 0S9N0ZZ

0S9N0ZZ is the ICD-10-PCS code for a drainage procedure on the left metatarsal-phalangeal joint using an open approach. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to other arthrotomy, foot and toe, the ICD-9-CM procedure title it maps to (80.18).

For a different body part, codes include 0S900ZZ (lumbar vertebral joint), 0S920ZZ (lumbar vertebral disc), 0S930ZZ (lumbosacral joint), 0S940ZZ (lumbosacral disc), 0S950ZZ (sacrococcygeal joint), 0S960ZZ (coccygeal joint) and 15 more.

The same procedure with a different approach is coded 0S9N3ZZ (percutaneous) and 0S9N4ZZ (percutaneous endoscopic).

With a different device, use 0S9N00Z (drainage device).

It is an operating-room procedure in the MS-DRG logic for DRG 503 (Foot Procedures with MCC), DRG 504 (Foot Procedures with CC), DRG 505 (Foot Procedures without CC/MCC), DRG 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC) and DRG 909 (Other O.R. Procedures for Injuries without CC/MCC), under the surgical categories “Foot Procedures” and “Other O.R. Procedures for Injuries”.

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
SLower Joints
3. Operation
9Drainage

Taking or letting out fluids and/or gases from a body part

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

Includes: Thoracentesis, incision and drainage

4. Body Part
NMetatarsal-Phalangeal Joint, Left

Includes: Metatarsophalangeal (MTP) joint

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 device

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 · Foot Procedures

ICD-9-CM equivalent

Converter →
  • 80.18Other arthrotomy, foot and toeapproximate

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 0S9N0ZZ

Is 0S9N0ZZ a valid ICD-10-PCS code for 2027?

Yes. 0S9N0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0S9N0ZZ an O.R. procedure?

Yes. 0S9N0ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0S9N0ZZ group to?

Depending on the principal diagnosis, 0S9N0ZZ can group to MS-DRG 503, MS-DRG 504, MS-DRG 505, MS-DRG 907, MS-DRG 908 and MS-DRG 909.

What is the ICD-9 procedure code for 0S9N0ZZ?

The CMS GEMs map 0S9N0ZZ to ICD-9-CM 80.18 (Other arthrotomy, foot and toe).