K63.2 – Fistula of intestine

ICD-10-CM 2027 diagnosis code · Other diseases of intestines

Billable code

ICD-10-CM code K63.2

Code: K63.2 (claims format: K632)
Description: Fistula of intestine
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 11. Diseases of the digestive system (K00-K95)
Block: K55-K64 Other diseases of intestines
Parent codes: K63

Notes for K63.2

Excludes1 (not coded here):

fistula of duodenum (K31.6)
fistula of intestine with Crohn's disease (K50.013, K50.113, K50.813, K50.913,)
fistula of intestine with ulcerative colitis (K51.013, K51.213, K51.313, K51.413, K51.513, K51.813, K51.913)

Excludes2 (not included here):

fistula of anal and rectal regions (K60.-)
fistula of appendix (K38.3)
intestinal-genital fistula, female (N82.2-N82.4)
vesicointestinal fistula (N32.1)

Code also:

, if applicable, disruption of internal operation (surgical) wound (T81.32-)

Index terms for K63.2

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in K63

K63.0 – Abscess of intestineBillable
K63.1 – Perforation of intestine (nontraumatic)Billable
K63.3 – Ulcer of intestineBillable
K63.4 – EnteroptosisBillable
K63.5 – Polyp of colonBillable
K63.8 – Other specified diseases of intestineHeader
K63.9 – Disease of intestine, unspecifiedBillable

Frequently asked questions

What is ICD-10 code K63.2?

K63.2 is the ICD-10-CM code for fistula of intestine, in the block K55-K64 (Other diseases of intestines).

Is K63.2 a billable code?

Yes. K63.2 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does K63.2 belong to?

It belongs to category K63 – Other diseases of intestine.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.