ICD-10-CM · Chapter 14 · N00–N99
N91.1
Secondary amenorrhea
Diseases of the genitourinary system
Quick facts
- Code
- N91.1
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 14 — Diseases of the genitourinary system
- Category
- N91 — Absent, scanty and rare menstruation
- Specificity
- 4 characters
How coders use this code
ICD-10-CM N91.1 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of secondary amenorrhea. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in N91
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