G90.511 (Complex regional pain syndrome I of right upper limb) compared with G90.512 (Complex regional pain syndrome I of left upper limb), from the official CMS tabular data. G90.511 and G90.512 code the same condition on opposite sides.
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. G90.511 and G90.512 name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| G90.511Complex regional pain syndrome I of right upper limb | G90.512Complex regional pain syndrome I of left upper limb | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | G00-G99 — Diseases of the Nervous System (G00-G99) | G00-G99 — Diseases of the Nervous System (G00-G99) |
| Definition | Complex regional pain syndrome I of right upper limb is a billable ICD-10-CM diagnosis code (G90.511). | Complex regional pain syndrome I of left upper limb is a billable ICD-10-CM diagnosis code (G90.512). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources