ICD-10-PCS 2027 procedure code
07T90ZZResection of Left Internal Mammary Lymphatic, Open 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 07T90ZZ
07T90ZZ is the ICD-10-PCS code for a resection procedure on the left lymphatic, internal mammary using an open approach. In ICD-10-PCS, resection means cutting out or off, without replacement, all of a body part.
In plain terms, this corresponds to radical excision of other lymph nodes, the ICD-9-CM procedure title it maps to (40.59).
For a different body part, codes include 07T00ZZ (lymphatic, head), 07T10ZZ (lymphatic, right neck), 07T20ZZ (lymphatic, left neck), 07T30ZZ (lymphatic, right upper extremity), 07T40ZZ (lymphatic, left upper extremity), 07T50ZZ (lymphatic, right axillary) and 14 more.
The same procedure with a different approach is coded 07T94ZZ (percutaneous 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 166 (Other Respiratory System O.R. Procedures with MCC), DRG 167 (Other Respiratory System O.R. Procedures with CC) and DRG 168 (Other Respiratory System O.R. Procedures without CC/MCC), under the surgical categories “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “Other Respiratory System O.R. Procedures”, “Other Digestive System O.R. Procedures” and 9 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
- 7Lymphatic and Hemic Systems
- 3. Operation
- TResection
Cutting out or off, without replacement, all of a body part
Includes: Total nephrectomy, total lobectomy of lung
- 4. Body Part
- 9Lymphatic, Internal Mammary, Left
- 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 body part
- 07T00ZZLymphatic, Head
- 07T10ZZLymphatic, Right Neck
- 07T20ZZLymphatic, Left Neck
- 07T30ZZLymphatic, Right Upper Extremity
- 07T40ZZLymphatic, Left Upper Extremity
- 07T50ZZLymphatic, Right Axillary
- 07T60ZZLymphatic, Left Axillary
- 07T70ZZLymphatic, Thorax
- 07T80ZZLymphatic, Internal Mammary, Right
- 07TB0ZZLymphatic, Mesenteric
- 07TC0ZZLymphatic, Pelvis
- 07TD0ZZLymphatic, Aortic
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 04 · Diseases and Disorders of the Respiratory System · Other Respiratory System O.R. Procedures
MDC 06 · Diseases and Disorders of the Digestive System · Other Digestive System O.R. Procedures
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue · Other Musculoskeletal System and Connective Tissue O.R. Procedures
MDC 09 · Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast · Other Skin, Subcutaneous Tissue and Breast Procedures
MDC 11 · Diseases and Disorders of the Kidney and Urinary Tract
MDC 11 · Diseases and Disorders of the Kidney and Urinary Tract · Kidney and Ureter Procedures for Non-Neoplasm
MDC 12 · Diseases and Disorders of the Male Reproductive System · Major Male Pelvic Procedures
MDC 13 · Diseases and Disorders of the Female Reproductive System · Pelvic Evisceration, Radical Hysterectomy and Radical Vulvectomy
MDC 16 · Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders · Other O.R. Procedures of the Blood and Blood Forming Organs
MDC 17 · Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms · Lymphoma and Leukemia with Major O.R. Procedures
MDC 17 · Myeloproliferative Diseases and Disorders, Poorly Differentiated Neoplasms · Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures
- 826Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with MCCRW 4.7581
- 827Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures with CCRW 2.3896
- 828Myeloproliferative Disorders or Poorly Differentiated Neoplasms with Major O.R. Procedures without CC/MCCRW 1.6955
ICD-9-CM equivalent
Converter →- 40.59Radical excision of other lymph nodesapproximate
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 07T90ZZ
Is 07T90ZZ a valid ICD-10-PCS code for 2027?
- Yes. 07T90ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 07T90ZZ an O.R. procedure?
- Yes. 07T90ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 07T90ZZ group to?
- Depending on the principal diagnosis, 07T90ZZ can group to MS-DRG 143, MS-DRG 144, MS-DRG 145, MS-DRG 166, MS-DRG 167 and MS-DRG 168.
What is the ICD-9 procedure code for 07T90ZZ?
- The CMS GEMs map 07T90ZZ to ICD-9-CM 40.59 (Radical excision of other lymph nodes).