Insect bite, nonvenomous of trunk, without mention of infection

This code signifies a non-toxic insect bite located on the patient's torso, including the chest, abdomen, back, or flanks, where there are no signs or symptoms of secondary infection. It describes a localized skin reaction to an insect bite without systemic effects or complications like cellulitis.

Use this code when documentation clearly indicates a nonvenomous insect bite on the trunk, such as a mosquito bite, ant bite, or flea bite, and the physician explicitly states no infection is present. This code is appropriate for initial encounters where the primary concern is the bite itself, and no further complications have developed.

• Ensure the documentation specifies the bite location as the trunk; otherwise, a more general or extremity-specific code may be necessary.
• Do not use this code if there is any mention of venomous insects (e.g., spider, scorpion, bee, wasp); refer to codes for toxic effects of bites.
• If signs of infection (e.g., pus, spreading erythema, fever) are present, a more specific code indicating infection should be used, often in conjunction with an external cause code.