ICD-10-PCS 2027 procedure code
09TM4ZZResection of Nasal Septum, Percutaneous Endoscopic 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 09TM4ZZ
09TM4ZZ is the ICD-10-PCS code for a resection procedure on the nasal septum using a percutaneous endoscopic approach. In ICD-10-PCS, resection means cutting out or off, without replacement, all of a body part.
In plain terms, this corresponds to submucous resection of nasal septum, the ICD-9-CM procedure title it maps to (21.5).
For a different body part, codes include 09T04ZZ (right external ear), 09T14ZZ (left external ear), 09T74ZZ (right tympanic membrane), 09T84ZZ (left tympanic membrane), 09TB4ZZ (right mastoid sinus), 09TC4ZZ (left mastoid sinus) and 14 more.
The same procedure with a different approach is coded 09TM0ZZ (open) and 09TM8ZZ (via natural or artificial opening endoscopic).
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 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 “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.
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
- TResection
Cutting out or off, without replacement, all of a body part
Includes: Total nephrectomy, total lobectomy of lung
- 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
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 09T04ZZExternal Ear, Right
- 09T14ZZExternal Ear, Left
- 09T74ZZTympanic Membrane, Right
- 09T84ZZTympanic Membrane, Left
- 09TB4ZZMastoid Sinus, Right
- 09TC4ZZMastoid Sinus, Left
- 09TF4ZZEustachian Tube, Right
- 09TG4ZZEustachian Tube, Left
- 09TK4ZZNasal Mucosa and Soft Tissue
- 09TL4ZZNasal Turbinate
- 09TN4ZZNasopharynx
- 09TP4ZZAccessory Sinus
Different approach
MS-DRG v44.0 grouping
All DRGs →Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.
MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat · Other Ear, Nose, Mouth and Throat O.R. Procedures
MDC 21 · Injuries, Poisonings and Toxic Effects of Drugs · Other O.R. Procedures for Injuries
MDC 24 · Multiple Significant Trauma · Other O.R. Procedures for Multiple Significant Trauma
ICD-9-CM equivalent
Converter →- 21.5Submucous resection of nasal septumapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 09TM4ZZ
Is 09TM4ZZ a valid ICD-10-PCS code for 2027?
- Yes. 09TM4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 09TM4ZZ an O.R. procedure?
- Yes. 09TM4ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 09TM4ZZ group to?
- Depending on the principal diagnosis, 09TM4ZZ can group to MS-DRG 143, MS-DRG 144, MS-DRG 145, MS-DRG 907, MS-DRG 908 and MS-DRG 909.
What is the ICD-9 procedure code for 09TM4ZZ?
- The CMS GEMs map 09TM4ZZ to ICD-9-CM 21.5 (Submucous resection of nasal septum).