Complex regional pain syndrome I, unspecified

This code describes Complex Regional Pain Syndrome Type I (CRPS I) when the specific body region affected is not documented. CRPS I is a chronic pain condition that typically affects an arm or a leg, usually after an injury, stroke, heart attack, or surgery. It is characterized by severe, prolonged pain, swelling, changes in skin temperature or color, and limited range of motion.

Use this code when the medical record clearly indicates a diagnosis of CRPS Type I, but the specific anatomical site (e.g., upper limb, lower limb) is not specified by the provider. This code is appropriate when the documentation supports the clinical criteria for CRPS I, such as allodynia, hyperalgesia, sudomotor/vasomotor abnormalities, or trophic changes, without identifying a laterality or specific body part.

• Avoid using this code if the documentation specifies the affected body part; instead, use a more specific code from the G90.5- series.
• Ensure the documentation differentiates CRPS Type I from CRPS Type II (causalgia), which involves confirmed nerve damage.
• Query the provider for clarification on the affected body region if it's not documented, to allow for more specific coding.