Non-specific code 2014 ICD-9-CM Diagnosis Code 304.9
Unspecified drug dependence
  • Non-Billable Code
  • There are 4 ICD-9-CM codes below 304.9 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
Clinical Information
  • Drug dependence - replaced the term "drug addiction" and is defined as a state, psychic and sometimes also physical, resulting from the interaction between a living organism and a drug, characterized by behavioral and other responses that always include a compulsion to take the drug on a continuous or periodic basis in order to experience its psychic effects, and sometimes to avoid the discomfort of its absence. Tolerance may or may not be present. A person may be dependent on more than one drug.
  • Physical and emotional dependence on a chemical substance. Compare drug dependency.
  • Psychological craving for or habituation to the use of a chemical substance which may or may not be accompanied by physical dependency. Used for animal or human populations. Compare drug addiction.
  • State of heavy dependence on any drug, including alcohol; sometimes defined as physical dependence but usually also including emotional dependence, i.e., compulsive or pathological drug use.
Applies To
  • Drug addiction NOS
  • Drug dependence NOS
ICD-9-CM Volume 2 Index entries containing back-references to 304.9:
  • Addiction - see also Dependence
    • drug (see also Dependence) 304.9
  • Dependence
    • drug NEC 304.9
      • analgesic NEC 304.6
      • combination (excluding morphine or opioid type drug) NEC 304.8
        • morphine or opioid type drug with any other drug 304.7
      • complicating pregnancy, childbirth, or puerperium 648.3
        • affecting fetus or newborn 779.5
      • hallucinogenic 304.5
      • hypnotic NEC 304.1
      • narcotic NEC 304.9
      • psychostimulant NEC 304.4
      • sedative 304.1
      • soporific NEC 304.1
      • specified type NEC 304.6
      • suspected damage to fetus affecting management of pregnancy 655.5
      • synthetic, with morphine-like effect 304.0
      • tranquilizing 304.1
    • narcotic (drug) NEC 304.9
  • Drug - see also condition
    • addiction (see also Dependence) 304.9
    • dependence (see also Dependence) 304.9
    • habit (see also Dependence) 304.9
  • Habit, habituation
    • drug (see also Dependence) 304.9
  • Narcotism (chronic) (see also Dependence) 304.9
    • acute
      • correct substance properly administered 349.82
      • overdose or wrong substance given or taken 967.8
        • specified drug - see Table of Drugs and Chemicals
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 304.9 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 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.