Insect bite (nonvenomous) of unspecified forearm, sequela

This code indicates a long-term complication or residual effect stemming from a nonvenomous insect bite on an unspecified forearm. This could include persistent scarring, chronic dermatitis, nerve damage, or other lasting issues directly attributable to the original bite, occurring after the acute phase of the injury has passed.

Apply this code when documenting a patient presenting with a current condition that is a direct consequence of an insect bite on their forearm, and the acute injury itself is no longer present. This is appropriate for follow-up visits addressing chronic sequelae such as keloid formation, hyperpigmentation, or intractable pruritus resulting from the initial bite.

• 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 condition to the historical insect bite on the forearm.
• Verify that the laterality of the forearm is truly unspecified in the medical record before using this code.