Insect bite (nonvenomous) of unspecified elbow, sequela

This code signifies a lasting effect or complication resulting from a nonvenomous insect bite on an unspecified elbow. It indicates that the initial injury has resolved, but a residual condition, such as scarring, chronic dermatitis, or nerve damage, persists. The "sequela" aspect means the current patient encounter is for the treatment or management of this long-term consequence.

Apply this code when documenting a patient visit for a chronic issue directly attributable to a past nonvenomous insect bite on the elbow, where the acute bite itself is no longer present. Examples include managing a hypertrophic scar, persistent itching, or localized skin discoloration that developed after such a bite. This code is appropriate when the focus of care is the residual effect, not the initial bite.

• Always use an external cause code (e.g., W57.XXXA) in conjunction with this code to specify the cause of the sequela.
• Ensure the medical record clearly documents the link between the past insect bite and the current chronic condition.
• Verify that the encounter is for the sequela, not an acute or subsequent encounter for the initial bite.