G56.4
Header — not billableCausalgia of upper limb
The ICD-10 code for causalgia of upper limb is G56.4.
G56.4 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Complex regional pain syndrome II of upper limb
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- G56.0Carpal tunnel syndromenon-billable header
- G56.1Other lesions of median nervenon-billable header
- G56.2Lesion of ulnar nervenon-billable header
- G56.3Lesion of radial nervenon-billable header
- G56.8Other specified mononeuropathies of upper limbnon-billable header
- G56.9Unspecified mononeuropathy of upper limbnon-billable header
- G56.4Causalgia of upper limbnon-billable header