Adverse effect of local astringents/detergents, sequela

This code signifies a long-term or residual condition resulting from a past adverse reaction to a topical astringent or detergent. These are effects that persist after the acute phase of the adverse event has resolved, indicating a lasting impact on the patient's health.

Apply this code when documenting chronic skin changes, scarring, persistent dermatitis, or other lasting tissue damage directly attributable to a previous adverse reaction to a local astringent or detergent. This is appropriate when the initial acute adverse effect has passed, but its consequences remain.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., L90.5 for scar conditions).
• Ensure documentation clearly links the current chronic condition to a past adverse effect of a local astringent or detergent.
• Do not use this code for acute adverse reactions; those require codes from the initial encounter or subsequent encounter categories.