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ICD-10-PCS 2027 procedure code

09UM4KZSupplement Nasal Septum with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Supplement Nasal Septum with Nonaut Sub, Perc Endo Approach

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 09UM4KZ

09UM4KZ is the ICD-10-PCS code for a supplement procedure on the nasal septum using a percutaneous endoscopic approach with nonautologous tissue substitute. In ICD-10-PCS, supplement means putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part.

In plain terms, this corresponds to other septoplasty, the ICD-9-CM procedure title it maps to (21.88).

For a different body part, codes include 09UB4KZ (right mastoid sinus), 09UC4KZ (left mastoid sinus), 09UL4KZ (nasal turbinate), 09UP4KZ (accessory sinus), 09UQ4KZ (right maxillary sinus), 09UR4KZ (left maxillary sinus) and 6 more.

The same procedure with a different approach is coded 09UM0KZ (open), 09UM3KZ (percutaneous) and 09UM8KZ (via natural or artificial opening endoscopic).

With a different device, use 09UM47Z (autologous tissue substitute) and 09UM4JZ (synthetic substitute).

It is an operating-room procedure in the MS-DRG logic for 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), DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), DRG 515 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with MCC), DRG 516 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with CC) and DRG 517 (Other Musculoskeletal System and Connective Tissue O.R. Procedures without CC/MCC), under the surgical categories “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “Other Musculoskeletal System and Connective Tissue O.R. Procedures”, “Other Skin, Subcutaneous Tissue and Breast Procedures” and 2 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
9Ear, Nose, Sinus
3. Operation
USupplement

Putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part

The biological material is non-living, or is living and from the same individual. The body part may have been previously replaced, and the Supplement procedure is performed to physically reinforce and/or augment the function of the replaced body part

Includes: Herniorrhaphy using mesh, mitral valve ring annuloplasty, put a new acetabular liner in a previous hip replacement

4. Body Part
MNasal Septum

Includes: Quadrangular cartilage; Septal cartilage; Vomer bone

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
KNonautologous Tissue Substitute

Includes: Acellular Hydrated Dermis; Bone bank bone graft; Cook Biodesign(R) Fistula Plug(s); Cook Biodesign(R) Hernia Graft(s); Cook Biodesign(R) Layered Graft(s); Cook Zenapro(tm) Layered Graft(s); Fish skin; Kerecis(R) (GraftGuide) (MariGen) (SurgiBind) (SurgiClose); MIRODERM(tm) Biologic Wound Matrix; Piscine skin; Tissue bank graft

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 →
  • 21.88Other septoplastyapproximate

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 09UM4KZ

Is 09UM4KZ a valid ICD-10-PCS code for 2027?

Yes. 09UM4KZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 09UM4KZ an O.R. procedure?

Yes. 09UM4KZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 09UM4KZ group to?

Depending on the principal diagnosis, 09UM4KZ can group to MS-DRG 143, MS-DRG 144, MS-DRG 145, MS-DRG 515, MS-DRG 516 and MS-DRG 517.

What is the ICD-9 procedure code for 09UM4KZ?

The CMS GEMs map 09UM4KZ to ICD-9-CM 21.88 (Other septoplasty).