Chronic excessive intake of water; it may be from an organic cause, such as the dehydration of diabetes mellitus, diabetes insipidus, or a reaction to medication, or from a psychological cause. When untreated it can lead to water intoxication.
Noncontingent excessive drinking behavior usually produced and maintained by operant schedules of reinforcement involving food as a reinforcer. Also used for disordered human populations.
Also applicable to/known as
Excessive thirst
ICD-9-CM Volume 2 Index Entries That Refer To 783.5
2008 ICD-9-CM Diagnosis Code 783.5
783.5