ICD10Check
CheckerBrowseOpen

G90.5

⚠ Non-billable (Header)

Complex regional pain syndrome I (CRPS I)

Diseases of the nervous system (G00-G99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

Also Known As

Reflex sympathetic dystrophy

❌ Excludes1

direct

Cannot be coded with G90.5

  • • causalgia of lower limb (G57.7-)
  • • causalgia of upper limb (G56.4-)
  • • complex regional pain syndrome II of lower limb (G57.7-)
  • • complex regional pain syndrome II of upper limb (G56.4-)

❌ Excludes1

inherited from G90

Rules from parent category G90: Disorders of autonomic nervous system

  • • dysfunction of the autonomic nervous system due to alcohol (G31.2)

Child Codes (4)

G90.50Complex regional pain syndrome I, unspecifiedG90.51Complex regional pain syndrome I of upper limbG90.52Complex regional pain syndrome I of lower limbG90.59Complex regional pain syndrome I of other specified site

🧪 Validate Combinations

Add G90.5 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeG90.5
BillableNo — Header code
ParentG90
CategoryDiseases of the nervous system (G00-G99)
Excludes15 rule(s)
Excludes20 note(s)
Child codes4

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)