ICD-10-CM 2027
ICD-10 code for Rectovesical fistula
From the official ICD-10-CM alphabetic index entry “Fistula (cutaneous) › rectovesical”. Page updated September 29, 2026.
About coding Rectovesical fistula
The ICD-10-CM code for Rectovesical fistula is N32.1 (Vesicointestinal fistula). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on N32.1.
Within N32 (other disorders of bladder), N32.1 is specifically for Vesicointestinal fistula. Related codes cover Bladder-neck obstruction (N32.0), Vesical fistula, not elsewhere classified (N32.2), diverticulum of bladder (N32.3), other specified disorders of bladder (N32.8) and bladder disorder, unspecified (N32.9).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 698 (Other Kidney and Urinary Tract Diagnoses with MCC, relative weight 1.6398), DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC, relative weight 1.0003), DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC, relative weight 0.6741), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Rectovesical fistula codes (official index)
- congenital Q64.79 — Other congenital malformations of bladder and urethra
Common questions about Rectovesical fistula ICD-10 codes
What is the ICD-10 code for Rectovesical fistula?
- N32.1 — Vesicointestinal fistula. More specific codes apply when the documentation supports them: Q64.79.
What is the ICD-10 code for congenital rectovesical fistula?
- Q64.79 — Other congenital malformations of bladder and urethra.
Is N32.1 billable?
- Yes. N32.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N32.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N32.1 as a principal diagnosis.
Is N32.1 a CC or MCC?
- N32.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.