G56.42

Billable

Causalgia of left upper limb

G56.42 is the ICD-10-CM code for Causalgia of left upper limb. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
G00-G99
Parent
G56.4
Edition
FY2026

G00-G99 Diseases of the nervous system

What this means — in plain language

MedlinePlus · NIH

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…

Read more about Complex Regional Pain Syndrome at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code G56.42?
G56.42 is the ICD-10-CM code for "Causalgia of left upper limb". It falls under G00-G99 Diseases of the nervous system.
Is G56.42 a billable code?
Yes — G56.42 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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