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2. ICD-10 Codes
3. Chapter - N00-N99
4. Section - N80-N98
5. Category - N91
6. N91.1

N91.1 - Secondary amenorrhea

• Applicable to Secondary amenorrhea
• The 2025 edition of ICD10-CM N91.1 became effective on October 1, 2024.
• This is the American ICD10-CM version of N91.1 - other international versions of ICD10 N91.1 may differ.
• N91.1 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above N91.1 contain annotation back-references that may be applicable to N91.1:

• Chapter: N00-N99 - Diseases of the genitourinary system
• Section: N80-N98 - Noninflammatory disorders of female genital tract
• Category: N91 - Absent, scanty and rare menstruation

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.