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Menstruation
    absent --see Amenorrhea
    anovulatory N97.0
    cycle, irregular N92.6
    delayed N91.0
    disorder N93.9
        psychogenic F45.8
    during pregnancy O20.8
    excessive (with regular cycle) N92.0
        with irregular cycle N92.1
        at puberty N92.2
    frequent N92.0
    infrequent --see Oligomenorrhea
    irregular N92.6
        specified NEC N92.5
    latent N92.5
    membranous N92.5
    painful --see also Dysmenorrhea N94.6
        primary N94.4
        psychogenic F45.8
        secondary N94.5
    passage of clots N92.0
    precocious E30.1
    protracted N92.5
    rare --see Oligomenorrhea
    retained N94.89
    retrograde N92.5
    scanty --see Oligomenorrhea
    suppression N94.89
    vicarious (nasal) N94.89