Irregular menstrual cycle

This code signifies an abnormal pattern of menstruation, deviating from the typical 21-35 day cycle or lasting longer than 7 days. It encompasses various irregularities such as oligomenorrhea (infrequent periods), polymenorrhea (frequent periods), or cycles with unpredictable timing.

Apply this code when documentation indicates a patient is experiencing menstrual cycles that are not regular in frequency, duration, or flow, and a more specific diagnosis (e.g., menorrhagia, metrorrhagia) is not yet established or is not the primary concern. Supporting documentation would include patient complaints of irregular periods, physician notes detailing cycle variations, or a diagnosis of "irregular menses."

• Do not use this code if a more specific diagnosis for the menstrual irregularity is documented (e.g., 626.2 for excessive menstruation).
• Consider sequencing this code as a primary diagnosis when the irregular cycle is the chief complaint or reason for the encounter.
• Ensure documentation clearly states the irregularity of the cycle, rather than just a symptom like heavy bleeding, which would point to a different code.