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ICD-10-PCS 2027 procedure code

0D1M4ZNBypass Descending Colon to Sigmoid Colon, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass Descending Colon to Sigmoid Colon, 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 0D1M4ZN

0D1M4ZN is the ICD-10-PCS code for a bypass procedure on the descending colon using a percutaneous endoscopic approach (qualifier: sigmoid colon). In ICD-10-PCS, bypass means altering the route of passage of the contents of a tubular body part.

In plain terms, this corresponds to Large-to-large intestinal anastomosis, the ICD-9-CM procedure title it maps to (45.94).

For a different body part, codes include 0D184ZN (small intestine), 0D1A4ZN (jejunum), 0D1B4ZN (ileum), 0D1H4ZN (cecum), 0D1K4ZN (ascending colon), 0D1L4ZN (transverse colon) and 1 more.

The same procedure with a different approach is coded 0D1M0ZN (open) and 0D1M8ZN (via natural or artificial opening endoscopic).

With a different device, use 0D1M47N (autologous tissue substitute), 0D1M4JN (synthetic substitute) and 0D1M4KN (nonautologous tissue substitute).

It is an operating-room procedure in the MS-DRG logic for DRG 329 (Major Small and Large Bowel Procedures with MCC), DRG 330 (Major Small and Large Bowel Procedures with CC), DRG 331 (Major Small and Large Bowel Procedures without CC/MCC), DRG 628 (Other Endocrine, Nutritional and Metabolic O.R. Procedures with MCC or Insertion of Antibiotic-eluting Bone Void Filler), DRG 629 (Other Endocrine, Nutritional and Metabolic O.R. Procedures with CC) and DRG 630 (Other Endocrine, Nutritional and Metabolic O.R. Procedures without CC/MCC), under the surgical categories “Major Small and Large Bowel Procedures”, “Other Endocrine, Nutritional and Metabolic O.R. 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
DGastrointestinal System
3. Operation
1Bypass

Altering the route of passage of the contents of a tubular body part

Rerouting contents of a body part to a downstream area of the normal route, to a similar route and body part, or to an abnormal route and dissimilar body part. Includes one or more anastomoses, with or without the use of a device

Includes: Coronary artery bypass, colostomy formation

4. Body Part
MDescending Colon
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
NSigmoid Colon

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 →
  • 45.94Large-to-large intestinal anastomosisapproximate

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 0D1M4ZN

Is 0D1M4ZN a valid ICD-10-PCS code for 2027?

Yes. 0D1M4ZN is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0D1M4ZN an O.R. procedure?

Yes. 0D1M4ZN is an O.R. procedure in MS-DRG v44.0.

What DRG does 0D1M4ZN group to?

Depending on the principal diagnosis, 0D1M4ZN can group to MS-DRG 329, MS-DRG 330, MS-DRG 331, MS-DRG 628, MS-DRG 629 and MS-DRG 630.

What is the ICD-9 procedure code for 0D1M4ZN?

The CMS GEMs map 0D1M4ZN to ICD-9-CM 45.94 (Large-to-large intestinal anastomosis).