Complex regional pain syndrome I of other specified site

This code signifies a chronic pain condition characterized by severe, debilitating pain, swelling, and changes in skin temperature and color in an unspecified body region, not associated with a specific nerve injury. It typically develops after trauma, surgery, stroke, or heart attack, but can also occur spontaneously. The "I" indicates the absence of a confirmed nerve lesion.

Utilize this code when documentation explicitly states Complex Regional Pain Syndrome Type I (CRPS-I) affecting a site other than the upper limb, lower limb, or unspecified site. This applies to cases where the affected area is clearly identified but falls outside the more specific CRPS-I codes (e.g., CRPS-I of the trunk or head). Documentation should clearly indicate the absence of a major nerve injury.

• Ensure the documentation specifies "Type I" or "CRPS-I" to differentiate from Type II (causalgia).
• Verify the affected body region is explicitly stated and does not fit a more specific CRPS-I code.
• Always sequence this code after the underlying condition or injury, if applicable, that precipitated the CRPS.