K57.31 — Diverticulosis of large intestine without perforation or abscess with bleeding
Is K57.31 billable?
Yes — K57.31 is billable for FY2027. K57.31 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. K57.31 may be submitted for encounters from October 1, 2026 through September 30, 2027.
K57.31 at a glance
| Code | K57.31 |
|---|---|
| Description | Diverticulosis of large intestine without perforation or abscess with bleeding |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does K57.31 group to?
K57.31 sits in MDC 06 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 377Gastrointestinal Hemorrhage with MCCmedical
- 378Gastrointestinal Hemorrhage with CCmedical
- 379Gastrointestinal Hemorrhage without CC/MCCmedical
As a secondary diagnosis, K57.31 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.
How is K57.31 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to K57.31. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Diverticulosis › large intestine › with › bleeding
Excludes1 — never code together — inherited from K57
The conditions below can never be reported together with K57.31 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from K57.3
The conditions below can never be reported together with K57.31 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- diverticular disease of both small and large intestine without perforation or abscess (K57.5-)
Excludes2 — not included here — inherited from Chapter 11
The conditions below are not part of K57.31, but a patient may have both at the same time. When documentation supports it, K57.31 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from K57
The conditions below are not part of K57.31, but a patient may have both at the same time. When documentation supports it, K57.31 and the excluded code may both be reported.
- diverticulum of appendix (K38.2)
Code also — inherited from K57
Two codes may be needed to describe the condition fully. Whether K57.31 is sequenced first depends on the reason for the encounter.
How long has K57.31 existed?
K57.31 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.