Posterior tibial tendinitis, left leg

This code signifies inflammation of the posterior tibial tendon specifically affecting the left lower extremity. This condition often presents as pain and swelling along the inner ankle and arch, potentially leading to dysfunction of the foot and ankle.

Apply this code when documentation clearly indicates a diagnosis of posterior tibial tendinitis localized to the patient's left leg. Supporting documentation should include physician notes detailing symptoms, physical exam findings consistent with tendinitis, and potentially imaging results confirming inflammation of the posterior tibial tendon.

• Ensure laterality is explicitly documented as "left" to support this specific code.
• Differentiate from other foot/ankle tendinopathies; look for specific mention of the posterior tibial tendon.
• Consider additional codes for associated conditions like flatfoot deformity if documented.