Insect bite (nonvenomous) of unsp part of head, init encntr

This code signifies a non-toxic insect bite affecting an unspecified area of the head. It indicates an injury caused by an insect that does not inject venom, such as a mosquito or ant, with the precise location on the head not documented. This is the initial presentation or treatment for this specific injury.

Use this code when documentation clearly states a nonvenomous insect bite to the head, but the specific anatomical site (e.g., scalp, face, ear) is not specified. This applies to the patient's first encounter for this particular bite. Supporting documentation would include notes indicating "insect bite to head," "bug bite on head," or similar, without further localization.

• Ensure the documentation explicitly states "nonvenomous" or implies it (e.g., mosquito bite). If venomous, a different code is required.
• Avoid using this code if a more specific anatomical site on the head is documented (e.g., S00.16XA for eyelid, S00.36XA for nose).
• The "A" seventh character indicates an initial encounter; use "D" for subsequent encounters or "S" for sequela.