Skip to content
HCC Buddy home

G56.40

Billable

Causalgia of unspecified upper limb

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

What This Code Means

Severe burning pain in an unspecified arm caused by nerve damage, often following injury or trauma.

Coding Tips

  • •Causalgia is a specific type of neuropathic pain; ensure the diagnosis specifically states causalgia rather than general nerve pain
  • •Attempt to determine laterality; if specified, use G56.41 (right) or G56.42 (left) instead of the unspecified code

Code Hierarchy

└G56Mononeuropathies of upper limb└G56.4Causalgia of upper limb└G56.40Causalgia of unspecified upper limb
└G56.40Causalgia of unspecified upper limb

Open G56.40 in the Interactive Encoder

See full code details, AI coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial — no credit card required.

Open in EncoderStart 14-Day Pro Trial