ICD-10 · PDGM grouping
K50-K52 — Noninfective enteritis and colitis
Every ICD-10-CM code in this range and the PDGM clinical group CMS assigns to it, read from the CMS grouper crosswalk v07.2.26.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in range
91
No clinical group
11
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
70 of the 91 codes in K50-K52 group to MMTA - Gastrointestinal tract and Genitourinary system, but the range is not uniform — it spreads across 2 clinical groups. A further 11 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Code families in K50-K52
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
Every code in K50-K52
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| K5000 | Crohn's disease of small intestine without complications | J | Can lead a claim |
| K50011 | Crohn's disease of small intestine with rectal bleeding | J | Can lead a claim |
| K50012 | Crohn's disease of small intestine w intestinal obstruction | J | Can lead a claim |
| K50013 | Crohn's disease of small intestine with fistula | J | Can lead a claim |
| K50014 | Crohn's disease of small intestine with abscess | J | Can lead a claim |
| K50018 | Crohn's disease of small intestine with other complication | J | Can lead a claim |
| K50019 | Crohn's disease of small intestine with unsp complications | None | Cannot lead a claim |
| K5010 | Crohn's disease of large intestine without complications | J | Can lead a claim |
| K50111 | Crohn's disease of large intestine with rectal bleeding | J | Can lead a claim |
| K50112 | Crohn's disease of large intestine w intestinal obstruction | J | Can lead a claim |
| K50113 | Crohn's disease of large intestine with fistula | J | Can lead a claim |
| K50114 | Crohn's disease of large intestine with abscess | J | Can lead a claim |
| K50118 | Crohn's disease of large intestine with other complication | J | Can lead a claim |
| K50119 | Crohn's disease of large intestine with unsp complications | None | Cannot lead a claim |
| K5080 | Crohn's disease of both small and lg int w/o complications | J | Can lead a claim |
| K50811 | Crohn's disease of both small and lg int w rectal bleeding | J | Can lead a claim |
| K50812 | Crohn's disease of both small and lg int w intestinal obst | J | Can lead a claim |
| K50813 | Crohn's disease of both small and large intestine w fistula | J | Can lead a claim |
| K50814 | Crohn's disease of both small and large intestine w abscess | A | Can lead a claim |
| K50818 | Crohn's disease of both small and lg int w oth complication | J | Can lead a claim |
| K50819 | Crohn's disease of both small and lg int w unsp comp | None | Cannot lead a claim |
| K5090 | Crohn's disease, unspecified, without complications | J | Can lead a claim |
| K50911 | Crohn's disease, unspecified, with rectal bleeding | J | Can lead a claim |
| K50912 | Crohn's disease, unspecified, with intestinal obstruction | J | Can lead a claim |
| K50913 | Crohn's disease, unspecified, with fistula | J | Can lead a claim |
| K50914 | Crohn's disease, unspecified, with abscess | J | Can lead a claim |
| K50918 | Crohn's disease, unspecified, with other complication | J | Can lead a claim |
| K50919 | Crohn's disease, unspecified, with unspecified complications | None | Cannot lead a claim |
| K5100 | Ulcerative (chronic) pancolitis without complications | J | Can lead a claim |
| K51011 | Ulcerative (chronic) pancolitis with rectal bleeding | J | Can lead a claim |
| K51012 | Ulcerative (chronic) pancolitis with intestinal obstruction | J | Can lead a claim |
| K51013 | Ulcerative (chronic) pancolitis with fistula | J | Can lead a claim |
| K51014 | Ulcerative (chronic) pancolitis with abscess | J | Can lead a claim |
| K51018 | Ulcerative (chronic) pancolitis with other complication | J | Can lead a claim |
| K51019 | Ulcerative (chronic) pancolitis with unsp complications | None | Cannot lead a claim |
| K5120 | Ulcerative (chronic) proctitis without complications | J | Can lead a claim |
| K51211 | Ulcerative (chronic) proctitis with rectal bleeding | J | Can lead a claim |
| K51212 | Ulcerative (chronic) proctitis with intestinal obstruction | J | Can lead a claim |
| K51213 | Ulcerative (chronic) proctitis with fistula | A | Can lead a claim |
| K51214 | Ulcerative (chronic) proctitis with abscess | J | Can lead a claim |
| K51218 | Ulcerative (chronic) proctitis with other complication | J | Can lead a claim |
| K51219 | Ulcerative (chronic) proctitis with unsp complications | None | Cannot lead a claim |
| K5130 | Ulcerative (chronic) rectosigmoiditis without complications | J | Can lead a claim |
| K51311 | Ulcerative (chronic) rectosigmoiditis with rectal bleeding | J | Can lead a claim |
| K51312 | Ulcerative (chronic) rectosigmoiditis w intestinal obst | J | Can lead a claim |
| K51313 | Ulcerative (chronic) rectosigmoiditis with fistula | J | Can lead a claim |
| K51314 | Ulcerative (chronic) rectosigmoiditis with abscess | J | Can lead a claim |
| K51318 | Ulcerative (chronic) rectosigmoiditis with oth complication | A | Can lead a claim |
| K51319 | Ulcerative (chronic) rectosigmoiditis w unsp complications | None | Cannot lead a claim |
| K5140 | Inflammatory polyps of colon without complications | J | Can lead a claim |
| K51411 | Inflammatory polyps of colon with rectal bleeding | J | Can lead a claim |
| K51412 | Inflammatory polyps of colon with intestinal obstruction | A | Can lead a claim |
| K51413 | Inflammatory polyps of colon with fistula | A | Can lead a claim |
| K51414 | Inflammatory polyps of colon with abscess | J | Can lead a claim |
| K51418 | Inflammatory polyps of colon with other complication | J | Can lead a claim |
| K51419 | Inflammatory polyps of colon with unspecified complications | None | Cannot lead a claim |
| K5150 | Left sided colitis without complications | J | Can lead a claim |
| K51511 | Left sided colitis with rectal bleeding | J | Can lead a claim |
| K51512 | Left sided colitis with intestinal obstruction | J | Can lead a claim |
| K51513 | Left sided colitis with fistula | A | Can lead a claim |
| K51514 | Left sided colitis with abscess | J | Can lead a claim |
| K51518 | Left sided colitis with other complication | J | Can lead a claim |
| K51519 | Left sided colitis with unspecified complications | None | Cannot lead a claim |
| K5180 | Other ulcerative colitis without complications | J | Can lead a claim |
| K51811 | Other ulcerative colitis with rectal bleeding | J | Can lead a claim |
| K51812 | Other ulcerative colitis with intestinal obstruction | J | Can lead a claim |
| K51813 | Other ulcerative colitis with fistula | A | Can lead a claim |
| K51814 | Other ulcerative colitis with abscess | J | Can lead a claim |
| K51818 | Other ulcerative colitis with other complication | J | Can lead a claim |
| K51819 | Other ulcerative colitis with unspecified complications | None | Cannot lead a claim |
| K5190 | Ulcerative colitis, unspecified, without complications | J | Can lead a claim |
| K51911 | Ulcerative colitis, unspecified with rectal bleeding | J | Can lead a claim |
| K51912 | Ulcerative colitis, unspecified with intestinal obstruction | J | Can lead a claim |
| K51913 | Ulcerative colitis, unspecified with fistula | J | Can lead a claim |
| K51914 | Ulcerative colitis, unspecified with abscess | J | Can lead a claim |
| K51918 | Ulcerative colitis, unspecified with other complication | J | Can lead a claim |
| K51919 | Ulcerative colitis, unsp with unspecified complications | None | Cannot lead a claim |
| K520 | Gastroenteritis and colitis due to radiation | J | Can lead a claim |
| K521 | Toxic gastroenteritis and colitis | J | Can lead a claim, code first applies |
| K5221 | Food protein-induced enterocolitis syndrome | A | Can lead a claim |
| K5222 | Food protein-induced enteropathy | A | Can lead a claim |
| K5229 | Other allergic and dietetic gastroenteritis and colitis | J | Can lead a claim |
| K523 | Indeterminate colitis | J | Can lead a claim |
| K5281 | Eosinophilic gastritis or gastroenteritis | J | Can lead a claim |
| K5282 | Eosinophilic colitis | J | Can lead a claim |
| K52831 | Collagenous colitis | J | Can lead a claim |
| K52832 | Lymphocytic colitis | J | Can lead a claim |
| K52838 | Other microscopic colitis | A | Can lead a claim |
| K52839 | Microscopic colitis, unspecified | J | Can lead a claim |
| K5289 | Other specified noninfective gastroenteritis and colitis | J | Can lead a claim |
| K529 | Noninfective gastroenteritis and colitis, unspecified | J | Can lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. 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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