Insect bite (nonvenomous) of nose, sequela

This code signifies a long-term or late-effect condition resulting from a nonvenomous insect bite on the nose. It indicates that the initial injury has resolved, but a residual symptom, scar, or other complication persists. This could include chronic itching, discoloration, or scar tissue formation.

Use this code when documentation clearly indicates a sequela (e.g., scar, chronic dermatitis, keloid) directly attributable to a past nonvenomous insect bite on the nose. The patient's medical record should specify the nose as the affected body part and confirm the nonvenomous nature of the original bite. This code is appropriate for encounters addressing the persistent effect, not the acute bite.

• Requires a seventh character "S" to denote sequela, indicating the treatment of a residual effect.
• Do not use for acute insect bites; those require codes from the initial encounter or subsequent encounter categories.
• Always sequence this code first if the sequela is the primary reason for the encounter, followed by codes for the specific manifestation of the sequela (e.g., L90.5 for scar conditions).