ICD-10 Code G56.01 – Carpal tunnel syndrome, right upper limb (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G56.01 – Carpal tunnel syndrome, right upper limb
What it is
G56.01 identifies carpal tunnel syndrome affecting the right wrist and hand. It means the median nerve is compressed at the carpal tunnel on the right side.
Clinical signs
Typical findings include numbness, tingling, pain, or weakness in the right hand, especially in the thumb, index, middle, and radial half of the ring finger. Symptoms may worsen at night or with repetitive hand use.
When to use this code
Use this code when the record clearly documents carpal tunnel syndrome limited to the right upper limb. It fits confirmed right-sided median nerve compression, whether based on exam findings, nerve testing, or specialist assessment. If laterality is not documented, check documentation.
Do not use for
Do not use this code for left-sided or bilateral carpal tunnel syndrome. It is also incorrect for nonspecific wrist pain, hand numbness without a documented diagnosis, or other neuropathies.
Coding tip
Always confirm right-sided laterality in the note before assigning G56.01.