ICD-10 code for carpal tunnel syndrome

The ICD-10-CM code for carpal tunnel syndrome is G56.0 (Carpal tunnel syndrome).

Within G56 (mononeuropathies of upper limb), G56.0 is specifically for carpal tunnel syndrome. Related codes cover other lesions of median nerve (G56.1), lesion of ulnar nerve (G56.2), lesion of radial nerve (G56.3), Causalgia of upper limb (G56.4), other specified mononeuropathies of upper limb (G56.8) and unspecified mononeuropathy of upper limb (G56.9).

To report this condition, pick the subcode that matches the documentation: G56.00 (unspecified upper limb), G56.01 (right upper limb), G56.02 (left upper limb) and G56.03 (bilateral upper limbs).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.