K63.2 — Fistula of intestine
Is K63.2 billable?
Yes — K63.2 is billable for FY2027. K63.2 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. K63.2 may be submitted for encounters from October 1, 2026 through September 30, 2027.
K63.2 at a glance
| Code | K63.2 |
|---|---|
| Description | Fistula of intestine |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does K63.2 group to?
K63.2 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.
- 393Other Digestive System Diagnoses with MCCmedical
- 394Other Digestive System Diagnoses with CCmedical
- 395Other Digestive System Diagnoses without CC/MCCmedical
As a secondary diagnosis, K63.2 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is K63.2 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to K63.2. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Fistula › abdomen (cutaneous)
- Fistula › abdominorectal (cutaneous)
- Fistula › abdominosigmoidal (cutaneous)
- Fistula › cecosigmoidal (cutaneous)
- Fistula › cecum (cutaneous)
- Fistula › colon (cutaneous)
- Fistula › enterocolic (cutaneous)
- Fistula › enterocutaneous (cutaneous)
- Fistula › fecal (cutaneous)
- Fistula › ileorectal or ileosigmoidal (cutaneous)
- Fistula › ileum (cutaneous)
- Fistula › intestine NEC (cutaneous)
Excludes1 — never code together
The conditions below can never be reported together with K63.2 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here
The conditions below are not part of K63.2, but a patient may have both at the same time. When documentation supports it, K63.2 and the excluded code may both be reported.
Code also
Two codes may be needed to describe the condition fully. Whether K63.2 is sequenced first depends on the reason for the encounter.
- , if applicable, disruption of internal operation (surgical) wound (T81.32-)
Excludes2 — not included here — inherited from Chapter 11
The conditions below are not part of K63.2, but a patient may have both at the same time. When documentation supports it, K63.2 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)
How long has K63.2 existed?
K63.2 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.
Which codes are confused with K63.2?
ICD-10-CM declares these codes mutually exclusive with K63.2 — exactly one of each pair can be correct for a given encounter.