ICD-10 Code

ICD-10 Codes for Neurology Billing: Neurological Code Reference

Reference for ICD-10-CM codes used in neurology billing. Covers G00-G99 neurological codes, common neurological diagnoses, and documentation specificity.

Quick Summary

Using NEUROLOGY on a Claim

Reference for ICD-10-CM codes used in neurology billing. Covers G00-G99 neurological codes, common neurological diagnoses, and documentation specificity.

Source: AAPC Codify - ICD-10-CM 2025

NEUROLOGY · ICD-10 Code

NEUROLOGY in Detail

What does NEUROLOGY cover in detail?

Neurology ICD-10-CM codes include G00–G99 for neurological conditions, covering epilepsy, Parkinson's disease, headache disorders, and peripheral neuropathy, with documentation-driven specificity requirements.

See our ICD-10 codes hub and neurology billing guide for code selection guidance, and contact our medical coding team for neurology-specific support.

neurological ICD-10 codesG-codes ICD-10neurology diagnosis billing codes
Back to ICD-10 Codes for Medical Billing: Specialty Category Reference
ICD-10 Codes for Neurology Billing: Neurological Code Reference

Using NEUROLOGY Correctly

How do I use NEUROLOGY correctly?

Specificity Requirements

ICD-10-CM requires the highest level of specificity. Use the most specific code available that is supported by clinical documentation.

Documentation Support

Clinical notes must clearly state the diagnosis that supports this code. Coders assign codes based on documented provider statements.

Procedure Linkage

Link this diagnosis code accurately to all procedures billed to demonstrate medical necessity for each service.

Payer Coverage

Verify that the payer covers the services billed with this diagnosis code. Some payers have limited coverage lists for specific ICD-10 codes.

Common Neurology ICD-10-CM Codes

ICD-10 CodeDescriptionCategory
G20Parkinson's diseaseExtrapyramidal and movement disorders
G35.DMultiple sclerosis, unspecifiedDemyelinating diseases
G35.ARelapsing-remitting multiple sclerosisDemyelinating diseases
G40.909Epilepsy, unspecified, not intractable, without status epilepticusEpilepsy
G43.909Migraine, unspecified, not intractable, without status migrainosusMigraine
G43.701Chronic migraine without aura, not intractable, with status migrainosusMigraine
G47.00Insomnia, unspecifiedSleep disorders
G47.33Obstructive sleep apnea (adult)Sleep disorders
G47.10Hypersomnia, unspecifiedSleep disorders

Source: AAPC Codify - ICD-10-CM 2025

NEUROLOGY, Frequently Asked Questions

Neurology ICD-10-CM codes include G00–G99 for neurological conditions, covering epilepsy, Parkinson's disease, headache disorders, and peripheral neuropathy, with documentation-driven specificity requirements.

See our ICD-10 codes hub and neurology billing guide for code selection guidance, and contact our medical coding team for neurology-specific support.

Back to the list of questions

Having Trouble With This Code?

Our billing specialists can help you resolve denials, improve coding accuracy, and reduce claim rejections.

Newsletter

Sign up for our newsletter to receive updates, industry news, and articles about medical billing and revenue cycle management.