Insect bite (nonvenomous), unspecified knee, subs encntr

This code signifies a non-venomous insect bite affecting an unspecified knee, indicating that the patient is receiving follow-up care for the initial injury. The bite is not from a venomous creature, and the specific knee (right or left) is not documented.

Apply this code when a patient presents for a subsequent visit related to a non-venomous insect bite on the knee, such as for wound check, dressing change, or monitoring for infection after initial treatment. This is appropriate when the initial encounter for the bite has already been coded.

• Ensure documentation specifies a non-venomous bite and a subsequent encounter.
• If the specific knee (right or left) is known, use the more specific code (S80.261D or S80.262D).
• Always sequence this code after the primary diagnosis if the insect bite is a secondary condition.