Calcific tendinitis, unspecified thigh

This code signifies inflammation of a tendon in the thigh due to calcium deposits, without further specification of the exact thigh or tendon affected. It represents a condition where calcium hydroxyapatite crystals accumulate within the tendon, leading to pain and dysfunction.

Use this code when documentation clearly indicates calcific tendinitis affecting the thigh, but the specific tendon (e.g., quadriceps, hamstring) or laterality (left/right) is not specified. This diagnosis is typically supported by imaging studies such as X-rays or ultrasound showing calcifications within a thigh tendon, alongside clinical symptoms of pain and tenderness.

• Ensure documentation specifies "calcific" tendinitis; otherwise, a general tendinitis code may be more appropriate.
• If laterality (left/right) or the specific tendon is documented, a more specific code within the M65.25 subcategory should be used.
• Consider sequencing this code after any underlying systemic conditions contributing to calcification, if applicable.