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M36.4

Billable

Arthropathy in hypersensitivity reactions classified elsewhere

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Joint inflammation and pain that occurs as part of an allergic or hypersensitivity reaction to a substance or medication.

Coding Tips

  • Code the underlying hypersensitivity reaction or allergy first
  • Document the triggering agent and which joints are affected

Code First

  • underlying disease, such as:
  • Henoch (-Schönlein) purpura (D69.0)
  • serum sickness (T80.6-)

Code Hierarchy

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