ICD-10 · PDGM grouping
K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
All 24 codes in the K91 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
24
Can lead a claim
24
Cannot lead a claim
0
What CMS assigns to K91
All 24 codes group to MMTA - Gastrointestinal tract and Genitourinary system (22) and MMTA - Other (2). 3 of the 24 count toward the Intestinal Obstruction and Ileus comorbidity subgroup; 21 are assigned none. Every code can lead a claim.
- Intestinal Obstruction and Ileus: can award the low comorbidity tier as a secondary diagnosis.
Every code in K91
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| K91.0 | Vomiting following gastrointestinal surgery | Can lead a claim | J | None |
| K91.1 | Postgastric surgery syndromes | Can lead a claim | J | None |
| K91.2 | Postsurgical malabsorption, not elsewhere classified | Can lead a claim | J | None |
| K91.3 Postprocedural intestinal obstruction | ||||
| K91.30 | Postprocedural intestinal obstruction, unspecified as to partial versus completeCMS: Postproc intestinal obst, unsp as to partial versus complete | Can lead a claim | J | Intestinal Obstruction and Ileus |
| K91.31 | Postprocedural partial intestinal obstruction | Can lead a claim | J | Intestinal Obstruction and Ileus |
| K91.32 | Postprocedural complete intestinal obstruction | Can lead a claim | J | Intestinal Obstruction and Ileus |
| K91.5 | Postcholecystectomy syndrome | Can lead a claim | J | None |
| K91.6 Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedure | ||||
| K91.61 | Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a digestive system procedureCMS: Intraop hemor/hemtom of dgstv sys org comp a dgstv sys proc | Can lead a claim | J | None |
| K91.62 | Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating other procedureCMS: Intraop hemor/hemtom of a dgstv sys org comp oth procedure | Can lead a claim | J | None |
| K91.7 Accidental puncture and laceration of a digestive system organ or structure during a procedure | ||||
| K91.71 | Accidental puncture and laceration of a digestive system organ or structure during a digestive system procedureCMS: Accidental pnctr & lac of a dgstv sys org dur dgstv sys proc | Can lead a claim | J | None |
| K91.72 | Accidental puncture and laceration of a digestive system organ or structure during other procedureCMS: Acc pnctr & lac of a dgstv sys org during oth procedure | Can lead a claim | J | None |
| K91.8 Other intraoperative and postprocedural complications and disorders of digestive system | ||||
| K91.81 | Other intraoperative complications of digestive system | Can lead a claim | J | None |
| K91.82 | Postprocedural hepatic failure | Can lead a claim | A | None |
| K91.83 | Postprocedural hepatorenal syndrome | Can lead a claim | A | None |
| K91.84 Postprocedural hemorrhage of a digestive system organ or structure following a procedure | ||||
| K91.840 | Postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedureCMS: Postproc hemor of a dgstv sys org fol a dgstv sys procedure | Can lead a claim | J | None |
| K91.841 | Postprocedural hemorrhage of a digestive system organ or structure following other procedureCMS: Postproc hemor of a dgstv sys org following other procedure | Can lead a claim | J | None |
| K91.85 Complications of intestinal pouch | ||||
| K91.850 | Pouchitis | Can lead a claim | J | None |
| K91.858 | Other complications of intestinal pouch | Can lead a claim | J | None |
| K91.86 | Retained cholelithiasis following cholecystectomy | Can lead a claim | J | None |
| K91.87 Postprocedural hematoma and seroma of a digestive system organ or structure following a procedure | ||||
| K91.870 | Postprocedural hematoma of a digestive system organ or structure following a digestive system procedureCMS: Postproc hematoma of a dgstv sys org fol a dgstv sys proc | Can lead a claim | J | None |
| K91.871 | Postprocedural hematoma of a digestive system organ or structure following other procedureCMS: Postproc hematoma of a dgstv sys org fol other procedure | Can lead a claim | J | None |
| K91.872 | Postprocedural seroma of a digestive system organ or structure following a digestive system procedureCMS: Postproc seroma of a dgstv sys org fol a dgstv sys procedure | Can lead a claim | J | None |
| K91.873 | Postprocedural seroma of a digestive system organ or structure following other procedureCMS: Postproc seroma of a dgstv sys org following other procedure | Can lead a claim | J | None |
| K91.89 | Other postprocedural complications and disorders of digestive systemCMS: Oth postprocedural complications and disorders of dgstv sys | Can lead a claim | J | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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