Is G52 a billable ICD-10-CM code?

No. G52 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does G52 sit in the tabular list?

Diseases of the nervous system (G00-G99), in the block Nerve, nerve root and plexus disorders (G50-G59).

G52

G52 — Disorders of other cranial nerves

Non-billable headerICD-10-CM

G52 is a non-billable header ICD-10-CM code for disorders of other cranial nerves. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

disorders of acoustic [8th] nerve (H93.3)
disorders of optic [2nd] nerve (H46, H47.0)
paralytic strabismus due to nerve palsy (H49.0-H49.2)

Risk adjustment

G52 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead G52

7 child codes. Green means billable.

Questions about G52

Is G52 a billable ICD-10-CM code?: No. G52 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does G52 sit in the tabular list?: Diseases of the nervous system (G00-G99), in the block Nerve, nerve root and plexus disorders (G50-G59).