Adverse effect of tetracyclines, initial encounter

This code signifies an undesirable or harmful reaction experienced by a patient due to the therapeutic use of a tetracycline antibiotic. These adverse effects can range from mild gastrointestinal upset to more severe reactions like photosensitivity, tooth discoloration, or hepatotoxicity. The "initial encounter" designation indicates that the patient is actively receiving treatment for the adverse effect.

Apply this code when documenting a patient presenting for the first time for evaluation and treatment of a side effect caused by a tetracycline medication. This includes situations where the patient is admitted to the hospital or seen in an outpatient setting specifically for managing the drug reaction.

• Always code the specific adverse effect (e.g., rash, nausea) in addition to this code.
• Ensure documentation clearly states the tetracycline was taken as prescribed and the reaction was an adverse effect, not poisoning or underdosing.
• Verify the encounter is indeed the "initial" one for the management of this specific adverse effect.