N91.5
Hypomenorrhea NOS
Oligomenorrhea
Oligomenorrhea infrequent menstruation)
Abnormally infrequent menstruation.
N91.5 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM N91.5 became effective on October 1, 2022.
This is the American ICD-10-CM version of N91.5 – other international versions of ICD-10 N91.5 may differ.