The primary ICD-10-CM code for neuropathy is G62.9 (Polyneuropathy, unspecified), a billable code reported when polyneuropathy is documented without further specification of its type, cause, or underlying etiology.
Primary codes
Billable
Billable
Extension
—
7th character
—
POA exempt
No
Inclusion terms
- Neuropathy NOS
Coding risks
- Assigning when documentation supports a more specific code
Hierarchy
Code comparison
Compare key differences between related codes to select the most specific option.
| Code | Description | Scenario |
|---|---|---|
| G62.9 | Polyneuropathy, unspecified | Polyneuropathy documented without a specified cause, drug exposure, or alcohol etiology. |
| G62.89 | Other specified polyneuropathies | Polyneuropathy with a specified cause documented, not drug-induced or alcohol-related, and not otherwise classifiable. |
| G62.0 | Drug-induced polyneuropathy | Polyneuropathy documented as caused by a specific medication or drug exposure. |
| G62.1 | Alcoholic polyneuropathy | Polyneuropathy documented with chronic alcohol use identified as the underlying cause. |
Select the most specific code supported by the encounter documentation. More specific codes improve reimbursement accuracy and reduce audit risk.
Code ranges
Other and unspecified polyneuropathies
Category covering drug-induced, alcoholic, radiation-induced, and other specified or unspecified polyneuropathies not classified elsewhere.
Polyneuropathies and other disorders of the peripheral nervous system
Sub-chapter grouping hereditary, inflammatory, and other polyneuropathies along with related peripheral nerve and myoneural disorders.
Inflammatory polyneuropathy
Sibling category for Guillain-Barre syndrome, serum neuropathy, and other inflammatory polyneuropathies with documented immune-mediated etiology.
Diabetes mellitus with diabetic polyneuropathy
Diabetes categories with a required fourth and fifth character extension identifying polyneuropathy as a documented diabetic complication.
Disorders of the autonomic nervous system
Category for autonomic neuropathies and dysautonomias affecting sympathetic and parasympathetic function rather than somatic peripheral nerves.
Coding risks
Avoid these common coding issues when reporting Neuropathy.
Impact
Assigning G62.9 without documented etiology may miscode as drug-induced (G62.0) or alcoholic (G62.1) polyneuropathy.
Mitigation
Consider querying the provider when etiology is absent rather than inferring from medication lists or social history.
Related codes
Ancillary and co-coding
Codes commonly reported with the primary diagnosis on the same claim.
Z-code variants
Family history, personal history, or screening encounter codes related to this condition.
In pregnancy
Pregnancy-specific O-code adaptations used in place of the primary when the condition occurs during or complicates pregnancy.
Differential codes
Alternative or commonly confused codes to consider when documentation suggests a different condition than the primary diagnosis.
Frequently asked questions
Use G62.9 only when the etiology is not documented. If a cause like diabetes or alcohol is noted, code to that specificity instead.
References
Compiled from the following authoritative coding references. Last updated 2026-08-04.