Z91.128
ICD-10-CMPatient's intentional underdosing of medication regimen for other reason
This code signifies a patient's deliberate decision to take less than the prescribed amount of a medication, or to skip doses, for reasons other than financial hardship or age-related physical debility. This intentional deviation from the prescribed regimen can lead to suboptimal treatment outcomes or worsening of the underlying condition.
Apply this code when documentation clearly indicates the patient consciously reduced their medication intake due to personal beliefs, perceived side effects, fear of addiction, or other non-financial/non-age-related reasons. This would include situations where the patient admits to underdosing because they "feel better" or "don't think they need it."
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