NPI Atlas

G12.20 – Motor neuron disease, unspecified

ICD-10-CM 2027 diagnosis code · Systemic atrophies primarily affecting the central nervous system

Billable code

ICD-10-CM code G12.20

Code: G12.20 (claims format: G1220)
Description: Motor neuron disease, unspecified
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 6. Diseases of the nervous system (G00-G99)
Block: G10-G14 Systemic atrophies primarily affecting the central nervous system
Parent codes: G12 › G12.2

Index terms for G12.20

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in G12.2

G12.21 – Amyotrophic lateral sclerosisBillable
G12.22 – Progressive bulbar palsyBillable
G12.23 – Primary lateral sclerosisBillable
G12.24 – Familial motor neuron diseaseBillable
G12.25 – Progressive spinal muscle atrophyBillable
G12.29 – Other motor neuron diseaseBillable

Frequently asked questions

What is ICD-10 code G12.20?

G12.20 is the ICD-10-CM code for motor neuron disease, unspecified, in the block G10-G14 (Systemic atrophies primarily affecting the central nervous system).

Is G12.20 a billable code?

Yes. G12.20 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does G12.20 belong to?

It belongs to category G12 – Spinal muscular atrophy and related syndromes.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.