Underdosing of keratolyt/keratplst/hair trmt drug, init

This code signifies a patient's underdosing of medications or preparations used to treat skin conditions (e.g., psoriasis, acne) or hair issues (e.g., dandruff, hair loss) by promoting shedding of the outer skin layer or softening keratin. Underdosing means the patient took less than the prescribed amount or stopped taking the medication prematurely, leading to a suboptimal therapeutic effect.

Apply this code when documentation indicates a patient is experiencing adverse effects or a lack of improvement due to not taking enough of their prescribed keratolytic, keratoplastic, or other hair treatment drug. This is appropriate for the initial encounter where the underdosing is identified and managed.

• Ensure documentation clearly states "underdosing" and specifies the type of drug involved (keratolytic, keratoplastic, or hair treatment).
• Confirm this is the initial encounter for the underdosing event; subsequent encounters would use a different seventh character.
• Always code the specific adverse effect or lack of therapeutic effect as an additional diagnosis, if applicable.