Pain in unspecified thigh

This code signifies a patient's subjective complaint of pain localized to the thigh region, without further specification of the exact anatomical location (e.g., anterior, posterior, medial, lateral) or the underlying cause. It represents an undifferentiated symptom rather than a specific diagnosis.

Utilize this code when documentation indicates "thigh pain" without laterality or more precise anatomical detail, and the etiology remains unknown or uninvestigated. It is appropriate for initial encounters where a definitive diagnosis has not yet been established.

• Avoid using this code if laterality (right or left) is documented; instead, use M79.651 or M79.652.
• Do not use this code if a more specific cause of the thigh pain (e.g., muscle strain, fracture, sciatica) is identified; code the definitive diagnosis.
• This code should generally be followed by codes for further investigation or a more specific diagnosis once determined.