Orthopedic Coding Alert

Reader Questions:

Look Around This Code’s Notes for Periarthritis Dx

Question: Encounter notes indicate that a patient suffers from “periarthritis NOS.” Is there a specific diagnosis code for this condition?

Tennessee Subscriber

Answer: Yes, there is, but you have to dig to find it. On your claim, report M77.9 (Enthesopathy, unspecified). Periarthritis NOS is listed as a condition that you’d code with M77.9. Other conditions that you’d report with M77.9 include:

  • Bone spur NOS
  • Capsulitis NOS
  • Tendinitis NOS.