2027 ICD-10-CM Diagnosis Code N82.4Other female intestinal-genital tract fistulae
ICD-10-CM Codes›N00–N99›N80-N98›N82
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Chronic Condition
N82.4 is a billable ICD-10-CM diagnosis code for other female intestinal-genital tract fistulae. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 393 through 395, 791, 793. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 8 closely related codes. Coders also document this condition as female digestive-genital tract fistula. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Female digestive-genital tract fistula
- Intestinouterine fistula
- Intestinovaginal fistula
- Rectovulval fistula
- Uterorectal fistula
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N82.4: its own notes plus those printed at N82 and Chapter 14. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Intestinouterine fistula
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may 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)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name N82.4, its category, or a range that includes it.
Excludes2 1
These codes carry an Excludes2 note naming N82.4: its condition is not part of those codes, and both may be reported when the patient has both.
- K63.2 Fistula of intestine
Use Additional Code 1
These codes say to use an additional code from the note, and N82.4 is one of the codes named.
- T81.83 Persistent postprocedural fistulaother female intestinal-genital tract fistulae (N82.4)
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
cervicosigmoidal N82.4
enterouterine N82.4
enterovaginal N82.4
to intestine NEC N82.4
intestinouterine N82.4
intestinovaginal N82.4
rectolabial N82.4
rectouterine N82.4
rectovulval N82.4
uterorectal N82.4
vaginointestinal NEC N82.4
vesicometrorectal N82.4
vulvorectal N82.4
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Fistulas
A fistula is an abnormal connection between two parts inside of the body. Fistulas may develop between different organs, such as between the esophagus and the windpipe or the bowel and the vagina. They can also develop between two blood vessels, such as between an artery and a vein or between two arteries.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert N82.4 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N82.4Overview
What is the ICD-10 code for other female intestinal-genital tract fistulae?
The ICD-10-CM code for other female intestinal-genital tract fistulae is N82.4 (sometimes written as N824). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N82.4 (Fistulae involving female genital tract) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other female intestinal-genital tract fistulae on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N82.4 group to?
When other female intestinal-genital tract fistulae is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, 394, 395, 393, with relative weights from 0.6379 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.
Is N82.4 a CC or MCC?
CMS lists N82.4 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 8 closely related codes in its exclusion list.
Can N82.4 be reported with N32.1?
Not as a rule. The Excludes1 note at N82, which applies to N82.4, lists "vesicointestinal fistulae (N32.1)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
