Specific code 2008 ICD-9-CM Diagnosis Code 296.99
Other specified episodic mood disorder
  • Short description: EPISODIC MOOD DISORD NEC.
  • ICD-9-CM 296.99 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 296.99 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2008 version of ICD-9-CM 296.99.
  • More recent version(s) of ICD-9-CM 296.99: 2009 2010 2011 2012 2013 2014.
Disease Synonyms
  • Agonistic behavior
  • Appropriate affect
  • Blunted affect
  • Blunting of mood
  • Complaining of feeling unhappy
  • Crying associated with mood
  • Cyclic mood swings
  • Dispiritment
  • Disturbance in mood
  • Diurnal variation of mood
  • Ecstasy
  • Elevated mood
  • Emotionally cold
  • Emotionally distant
  • Euphoria
  • Euthymic mood
  • Faddy behavior
  • Feeling a failure
  • Feeling abandoned
  • Feeling angry
  • Feeling emotionally hurt
  • Feeling mixed emotions
  • Feeling of discouragement
  • Flat affect
  • Hyperirritability
  • Hypomanic mood
  • Incongruity of mood
  • Indifference
  • Mood anorexia
  • Mood disorder
  • Mood disorder in full remission
  • Mood disorder with manic features due to general medical condition
  • Mood swing
  • Mood swings
  • Moody
  • Non-delusional perplexed mood
  • Overoptimism
  • Physiological disturbance associated with mood
  • Pleasurable affect
  • Rebound mood swings
  • Restricted affect
  • Right hemispheric organic affective disorder
  • Seasonal affective disorder
  • Seasonal variation of mood
  • Sensitivity
  • Severe mood disorder with psychotic features, mood-incongruent
  • Sublimation - mental defense mechanism
  • Temperamental
  • Unpleasurable affect
  • Unpredictable in mood
  • Variability of mood
  • Volatile Mood
Applies To
  • Mood swings:
    • brief compensatory
    • rebound
Convert to ICD-10-CM: 296.99 converts approximately to:
  • 2014 ICD-10-CM F34.8 Other persistent mood [affective] disorders
ICD-9-CM Volume 2 Index entries containing back-references to 296.99:
  • Disorder - see also Disease
    • mood- (see also Disorder, bipolar) 296.90
      • episodic 296.90
        • specified NEC 296.99
      • in conditions classified elsewhere 293.83
  • Mood swings
    • brief compensatory 296.99
    • rebound 296.99
  • Psychosis 298.9
  • Reaction
    • affective (see also Psychosis, affective) 296.90
      • specified type NEC 296.99
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 296.99 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2008 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.