Z79.899 - Other long term (current) drug therapy
Hi All-
We are considering the use of this ICD 10 code to support medical necessity for lab testing while a patient is having chemotherapy.
I am struggling with the term long term in that I can't find documentation to clarify what is considered long term; 6 weeks, 3 months, a year?
Does anyone have an appropriate source where this is defined?
Thanks so much!
We are considering the use of this ICD 10 code to support medical necessity for lab testing while a patient is having chemotherapy.
I am struggling with the term long term in that I can't find documentation to clarify what is considered long term; 6 weeks, 3 months, a year?
Does anyone have an appropriate source where this is defined?
Thanks so much!
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Comments
Assign a code from Z79 if the patient is receiving a
medication for an extended period as a prophylactic
measure (such as for the prevention of deep vein
thrombosis) or as treatment of a chronic condition
(such as arthritis) or a disease requiring a lengthy
course of treatment (such as cancer). Do not assign a
code from category Z79 for medication being
administered for a brief period of time to treat an
acute illness or injury (such as a course of antibiotics
to treat acute bronchitis).
ICD-10-CM Official Guidelines for Coding and Reporting
FY 2016
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