N91.1

Billable

Secondary amenorrhea

N91.1 is the ICD-10-CM code for Secondary amenorrhea. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
N00-N99
Parent
N91
Edition
FY2026

N00-N99 Diseases of the genitourinary system

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code N91.1?
N91.1 is the ICD-10-CM code for "Secondary amenorrhea". It falls under N00-N99 Diseases of the genitourinary system.
Is N91.1 a billable code?
Yes — N91.1 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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