ICD-10 Code for Causalgia
Also indexed as (upper limb)
The ICD-10-CM code for causalgia is G56.4 — Causalgia of upper limb. This is the code the Alphabetic Index gives for causalgia with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
G56.4 cannot be submitted on a claim. It is a header code, so a more specific code from the list below is required.
Which causalgia code should you use?
The Alphabetic Index lists 2 codes under Causalgia. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| lower limb | G57.7 | Causalgia of lower limb | not billable |
Codes under G56.4
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources