G56.4
G56.4: Causalgia of upper limb
Non-billable headerICD-10-CM
G56.4 is a non-billable header ICD-10-CM code for causalgia of upper limb. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Complex regional pain syndrome II of upper limb
Excludes1 inherited from the categories above G56.4
A category’s note binds every code beneath it.
Written on G56: Mononeuropathies of upper limb
- current traumatic nerve disorder - see nerve injury by body region
Other codes that can never be billed with G56.4
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead G56.4
4 child codes. Green means billable.