Complex regional pain syndrome I of right lower limb

This code signifies a chronic, neuropathic pain condition affecting the right lower extremity, characterized by severe pain, swelling, changes in skin temperature/color, and functional impairment, without evidence of nerve lesion. It represents the non-neuropathic form of Complex Regional Pain Syndrome (CRPS), specifically impacting the lower limb on the right side.

Apply this code when documentation clearly indicates a diagnosis of CRPS Type I (reflex sympathetic dystrophy) localized to the patient's right leg, foot, or ankle. This diagnosis is typically made based on clinical criteria, such as the Budapest criteria, and supported by the absence of a specific nerve injury.

• Ensure documentation specifies "Type I" or "reflex sympathetic dystrophy" to differentiate from CRPS Type II.
• Verify the laterality (right) and anatomical site (lower limb) are explicitly stated in the medical record.
• Do not use this code if a specific nerve lesion is identified; that would indicate CRPS Type II.