Insect bite (nonvenomous) of lip, sequela

This code describes a long-term or late effect resulting from a nonvenomous insect bite to the lip. This could include persistent scarring, discoloration, chronic inflammation, or nerve damage that remains after the initial acute phase of the bite has resolved. It indicates that the original injury is no longer active but has left a lasting consequence.

Use this code when documentation clearly indicates a residual condition of the lip directly attributable to a past nonvenomous insect bite. This applies when the patient presents for treatment or evaluation of these chronic effects, not the initial bite itself. Documentation should specify the lip as the affected site and confirm the nonvenomous nature of the original bite.

• Always sequence the sequela code first, followed by a code describing the specific residual condition (e.g., scar, chronic dermatitis).
• Ensure documentation differentiates between an acute bite and a sequela; this code is only for the latter.
• Do not use for allergic reactions to insect bites unless the reaction itself has resulted in a permanent sequela.