337.21
Reflex sympathetic dystrophy of the upper limb
The ICD-9 code for reflex sympathetic dystrophy of the upper limb is 337.21.
Legacy code — retired October 1, 2015ICD-10-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents.
View ICD-9 → ICD-10 crosswalk for 337.21 →