Valid for Submission
G56.42 is a billable diagnosis code used to specify a medical diagnosis of causalgia of left upper limb. The code G56.42 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code G56.42 might also be used to specify conditions or terms like chronic pain of left upper limb, complex regional pain syndrome of upper limb, complex regional pain syndrome type ii of left upper limb, complex regional pain syndrome, type ii, complex regional pain syndrome, type ii, upper limb , neuralgia of left upper limb, etc.
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Chronic pain of left upper limb
- Complex regional pain syndrome of upper limb
- Complex regional pain syndrome type II of left upper limb
- Complex regional pain syndrome, type II
- Complex regional pain syndrome, type II, upper limb
- Neuralgia of left upper limb
Convert G56.42 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code G56.42 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Complex Regional Pain Syndrome
Complex regional pain syndrome (CRPS) is a chronic pain condition. It causes intense pain, usually in the arms, hands, legs, or feet. It may happen after an injury, either to a nerve or to tissue in the affected area. Rest and time may only make it worse.
Symptoms in the affected area are
- Dramatic changes in skin temperature, color, or texture
- Intense burning pain
- Extreme skin sensitivity
- Swelling and stiffness in affected joints
- Decreased ability to move the affected body part
The cause of CRPS is unknown. There is no specific diagnostic test. Your doctor will diagnose CRPS based on your signs and symptoms.
There is no cure. It can get worse over time, and may spread to other parts of the body. Occasionally the symptoms go away, either temporarily or for good. Treatment focuses on relieving the pain, and can include medicines, physical therapy, and nerve blocks.
NIH: National Institute of Neurological Disorders and Stroke
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