ICD-9 Code 305.42

Sedative, hypnotic or anxiolytic abuse, episodic

Not Valid for Submission

305.42 is a legacy non-billable code used to specify a medical diagnosis of sedative, hypnotic or anxiolytic abuse, episodic. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 305.42
Short Description:Sed,hyp,anxiolytc ab-epi
Long Description:Sedative, hypnotic or anxiolytic abuse, episodic

Convert 305.42 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • F13.10 - Sedative, hypnotic or anxiolytic abuse, uncomplicated

Code Classification

  • Mental disorders (290–319)
    • Neurotic disorders, personality disorders, and other nonpsychotic mental disorders (300-316)
      • 305 Nondependent abuse of drugs

Information for Medical Professionals

Information for Patients


Prescription Drug Misuse

If you take a medicine in a way that is different from what the doctor prescribed, it is called prescription drug misuse. It could be:

  • Taking a medicine that was prescribed for someone else
  • Taking a larger dose than you are supposed to
  • Taking the medicine in a different way than you are supposed to. This might be crushing tablets and then snorting or injecting them.
  • Using the medicine for another purpose, such as getting high

Misusing some prescription drugs can lead to addiction. These include opioids, sedatives, tranquilizers, and stimulants.

Every medicine has some risk of side effects. Doctors take this into account when prescribing medicines. People who misuse these drugs may not understand the risks. The medicines may not be safe for them, especially at higher doses or when taken with other medicines.

NIH: National Institute on Drug Abuse


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ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.