K51.319
Billable codeUlcerative (chronic) rectosigmoiditis with unspecified complications
The ICD-10 code for ulcerative (chronic) rectosigmoiditis with unspecified complications is K51.319.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- K51.311Ulcerative (chronic) rectosigmoiditis with rectal bleeding
- K51.312Ulcerative (chronic) rectosigmoiditis with intestinal obstruction
- K51.313Ulcerative (chronic) rectosigmoiditis with fistula
- K51.314Ulcerative (chronic) rectosigmoiditis with abscess
- K51.318Ulcerative (chronic) rectosigmoiditis with other complication
- K51.319Ulcerative (chronic) rectosigmoiditis with unspecified complications
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 5563Approximate match
Associated MS-DRGs
K51.319 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.