Health Trak Plus Menthol-infused Pain Relief Socks Cloth
NDC Package 85720-8131-1

View Billable Units, 11-Digit Conversion Format, and RxNorm mappings
Table of Contents
    1. Package Information
    2. Frequently Asked Questions

Package Information

Health Trak Plus Menthol-infused Pain Relief Socks (menthol) cloths is clean and dry affected areaRemove socks from packaging and place on feetMaximum use of 8 hours per day, remove socks after 8 hours of wearWash separately from other clothingWear socks daily but nore more than 4 times per week. This formulation utilizes a cloth delivery system. Marketed by Railroad Sock Llc, this product is identified by NDC 85720-8131 and is authorized under FDA application M017.

Identification & Billing

NDC Package Code
85720-8131-1
Package Description
1 g in 1 BOX
Product Code
85720-8131
11-Digit Billing Format
85720813101

Clinical Specifications

Proprietary Name
Health Trak Plus Menthol-infused Pain Relief Socks
Non-Proprietary Name
Menthol
Substance Name
Menthol
Dosage Form
Cloth - A large piece of relatively flat, absorbent material that contains a drug. It is typically used for applying medication or for cleansing.
Administration Route
Topical - Administration to a particular spot on the outer surface of the body. The E2B term TRANSMAMMARY is a subset of the term TOPICAL.
Active Ingredient(s)
MENTHOL 1 g/100g
Usage Information
Clean and dry affected areaRemove socks from packaging and place on feetMaximum use of 8 hours per day, remove socks after 8 hours of wearWash separately from other clothingWear socks daily but nore more than 4 times per week

Regulatory & Marketing

Labeler Name
Railroad Sock Llc
Product Type
Human Otc Drug
FDA Application #
M017
Marketing Category
OTC MONOGRAPH DRUG -
Start Marketing Date
12-18-2025
Listing Expiration
12-31-2026
Exclude Flag
N
Sample Package
No

Hierarchy Structure

Code Lineage

The NDC Directory contains ONLY information on final marketed drugs submitted to FDA electronically by labelers. A labeler might be a manufacturer, re-packager or re-labeler. The product information included in the NDC directory does not indicate that FDA has verified the information provided by the product labeler. Assigned NDC numbers are not in any way an indication of FDA approval of the product.

* Please review the full disclaimer at the bottom of this page.

Frequently Asked Questions

What is the distribution configuration for this product package?

The code 85720-8131-1 identifies a specific commercial package of 1 g in 1 box of Health Trak Plus Menthol-infused Pain Relief Socks, a human over the counter drug labeled by Railroad Sock Llc. This cloth is formulated for topical use and contains menthol as the active substance.

Is this product currently listed with the FDA?

Yes, this product is active and verified within the NDC Directory. It was introduced to the market by Railroad Sock Llc on December 18, 2025. The current certification is valid through December 31, 2026.

How is this Railroad Sock Llc product billed for insurance claims?

For medical billing and reimbursement, this package follows the 11-digit CMS format: 85720813101. The table below illustrates the segment conversion from the 10-digit labeler code to the 11-digit provider format.

11-Digit Code Conversion

Billing payers usually require a 5-4-2 segment configuration. Below is the conversion from the 10-digit package format to the 11-digit billing format:

10-Digit Format (5-4-1)
85720-8131-1
11-Digit CMS (5-4-2)
85720-8131-01

Note: The zero is added to the Package segment to maintain the 5-4-2 structure.