Wiki Baseline Diagnosis for Urinalysis

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Code: Z79.891
Long term (current) use of opiate analgesic
Excludes 1: methodone use NOS (F11.9-)
use of methodone for treatment of heroin addiction (F11.2-)
Long term (current) use of methadone for pain management
Parent Code Notes: Z79
Code also: any therapeutic drug level monitoring (Z51.81)
Excludes2: drug abuse and dependence (F11-F19)
drug use complicating pregnancy, childbirth, and the puerperium (O99.32-)
long term (current) use of oral antidiabetic drugs (Z79.84)
long term (current) use of oral hypoglycemic drugs (Z79.84)
Includes: long term (current) drug use for prophylactic purposes

Block Notes
Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
Code also any follow-up examination (Z08-Z09)

Coding Guidelines
Factors influencing health status and contact with health services (Z00-Z99)
Note: Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
(a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
(b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.


Broken Arrow, Oklahoma
Best answers

We provide urinalysis testing (G0479) for our new patients in order to be aware of what patients are taking both legally and illegally in order to properly prescribe narcotic therapy if it is warranted. As sometimes these patients have not taken opiates we are unable to use diagnosis code Z79.891, to indicate long term opiate use. Is there possibly a baseline diagnosis we are not aware of? Any information would be greatly appreciated.

Thank you,