N91.3 is the ICD-10 code for Primary oligomenorrhoea. It is a four-character subcategory of N91 (Absent, scanty and rare menstruation), the most specific level in the WHO edition. It belongs to the block N80–N98 (Noninflammatory disorders of female genital tract) in Chapter XIV, Diseases of the genitourinary system.
- Code type
- Subcategory (4 characters)
- Chapter
- XIV · N00–N99
- Classification
- WHO ICD-10, 2019 version
Coding notes
- Menstruation which is scanty or rare from the start.
N91.3 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
N91.3Primär oligomenorré
N91.3Primær oligomenoré
DN913Primær oligomenoré
- DN913APrimær hypomenoré
- DN913CPrimær oligohypomenoré
N91.3Primaarinen oligomenorrea
N91.3Primäre Oligomenorrhoe
N91.3Oligoménorrhée primaire
N91.3primaire oligomenorroe
N91.3Primary oligomenorrhea
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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