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ICD-10-CM 2027

ICD-10 code for phrenic nerve paralysis

G56.8

Other specified mononeuropathies of upper limb

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Paralysis, paralytic (complete) (incomplete) › phrenic nerve”. Page updated September 29, 2026.

About coding phrenic nerve paralysis

The ICD-10-CM code for phrenic nerve paralysis is G56.8 (Other specified mononeuropathies of upper limb).

Within G56, choose G56.8 (Other specified mononeuropathies of upper limb) only when documentation doesn't support a more specific option: carpal tunnel syndrome (G56.0), 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) and unspecified mononeuropathy of upper limb (G56.9).

To report this condition, pick the subcode that matches the documentation: G56.80 (limb), G56.81 (limb), G56.82 (limb) and G56.83 (limbs).

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

Common questions about phrenic nerve paralysis ICD-10 codes

What is the ICD-10 code for phrenic nerve paralysis?

G56.8 — Other specified mononeuropathies of upper limb (a header code; report a more specific subcode).

Is G56.8 billable?

No. G56.8 is a header code. Report one of its more specific subcodes instead.