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N80 ICD-10-CA category: Endometriosis

N80 isn’t a code on its own. Choose one of the 9 codes beneath it, the one the documentation supports.

Official description

N80

Endometriosis

ICD-10-CA · Canada

Codes in N80

N80 isn’t a code on its own. Open the code that matches what the note documents.

N80.0Endometriosis of uterusN80.1Endometriosis of ovaryN80.2Endometriosis of fallopian tubeN80.3Endometriosis of pelvic peritoneumN80.4Endometriosis of rectovaginal septum and vaginaN80.5Endometriosis of intestineN80.6Endometriosis in cutaneous scarN80.8Other endometriosisN80.9Endometriosis, unspecified

Notes for N80

As CIHI prints them, with any note N80 takes from the headings above it.

Excludes

Conditions classified elsewhere.

  • Certain conditions originating in the perinatal period (P00-P96)certain infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 14: Diseases of the genitourinary system (N00-N99)

Where N80 sits

  1. 1ChapterChapter 14: Diseases of the genitourinary system (N00-N99)
  2. 2Block N80-N98Noninflammatory disorders of female genital tract
  3. 3Category N80Endometriosis

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See N80 in the CIHI source

Frequently asked questions

Is N80 a valid ICD-10-CA code?

No. N80 (Endometriosis) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 9 codes; record the one the documentation supports.

Where is N80 in ICD-10-CA?

N80 sits under N80-N98 Noninflammatory disorders of female genital tract, within Chapter 14: Diseases of the genitourinary system (N00-N99).

What coding notes apply to N80?

ICD-10-CA lists Excludes notes for N80, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside N80

N81Female genital prolapseN82Fistulae involving female genital tractN83Noninflammatory disorders of ovary, fallopian tube and broad ligamentN84Polyp of female genital tractN85Other noninflammatory disorders of uterus, except cervixN86Erosion and ectropion of cervix uteriN87Dysplasia of cervix uteriN88Other noninflammatory disorders of cervix uteriN89Other noninflammatory disorders of vaginaN90Other noninflammatory disorders of vulva and perineumN91Absent, scanty and rare menstruationN92Excessive, frequent and irregular menstruationN93Other abnormal uterine and vaginal bleedingN94Pain and other conditions associated with female genital organs and menstrual cycleN95Menopausal and other perimenopausal disordersN96Habitual aborterN97Female infertilityN98Complications associated with artificial fertilization