N94.4 ICD-10-CA code: Primary dysmenorrhoea
N94.4 is the ICD-10-CA code for “Primary dysmenorrhoea” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
N94.4Primary dysmenorrhoea
ICD-10-CA · Canada · Also written N944
Index terms
Entries in CIHI’s alphabetical index that lead to N94.4. Searching the index by the condition the note names is how coders reach this code.
- Menstruation, painful, primary
- Dysmenorrhea (essential) (exfoliative), primary
Notes for N94.4
As CIHI prints them, with any note N94.4 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 N94.4 sits
- 1ChapterChapter 14: Diseases of the genitourinary system (N00-N99)
- 2Block N80-N98Noninflammatory disorders of female genital tract
- 3Category N94Pain and other conditions associated with female genital organs and menstrual cycle
- 4Valid code N94.4Primary dysmenorrhoea
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.
Frequently asked questions
What does ICD-10-CA code N94.4 mean?
N94.4 is the ICD-10-CA code for “Primary dysmenorrhoea” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is N94.4 in ICD-10-CA?
N94.4 sits under N94 Pain and other conditions associated with female genital organs and menstrual cycle, within N80-N98 Noninflammatory disorders of female genital tract, within Chapter 14: Diseases of the genitourinary system (N00-N99).
What coding notes apply to N94.4?
ICD-10-CA lists Excludes notes for N94.4, 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 N94.4
View N94N94.0MittelschmerzN94.1DyspareuniaN94.2VaginismusN94.3Premenstrual tension syndromeN94.5Secondary dysmenorrhoeaN94.6Dysmenorrhoea, unspecifiedN94.8Other specified conditions associated with female genital organs and menstrual cycleN94.9Unspecified condition associated with female genital organs and menstrual cycle