G0255 HCPCS code: Current perception threshold/sensory nerve conduction test, (snct) per limb, any nerve

G0255 is the HCPCS Level II code for current perception threshold/sensory nerve conduction test, (snct) per limb, any nerve. Its Medicare coverage code is M (Non-covered by Medicare): Medicare does not cover this item or service.

Code details

Medicare policy articles for this code

• A54969: Billing and Coding: Nerve Conduction Studies and Electromyography (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B))
• A56619: Billing and Coding: Nerve Conduction Studies and Electromyography (Palmetto GBA (MAC - Part A, MAC - Part B))
• A56619: Billing and Coding: Nerve Conduction Studies and Electromyography (Palmetto GBA (MAC - Part A, MAC - Part B))
• A57307: Billing and Coding: Nerve Conduction Studies and Electromyography (CGS Administrators, LLC (MAC - Part A, MAC - Part B))
• A57478: Billing and Coding: Nerve Conduction Studies and Electromyography (WPS Insurance Corporation (MAC - Part A, MAC - Part B))
• A57478: Billing and Coding: Nerve Conduction Studies and Electromyography (WPS Insurance Corporation (MAC - Part A, MAC - Part B))
• A57668: Billing and Coding: Nerve Conduction Studies and Electromyography (Wellpoint Federal (MAC - Part A, MAC - Part B))

Covered diagnoses (2,093 ICD-10-CM codes)

The diagnoses most often listed as covered in the policy articles above:

Showing 10 of 2,093. The full list, non-covered diagnoses and CSV export are in Caduvo.

What changed for G0255

• 2002-10-01: G0255 added to HCPCS Level II
• Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01

Frequently asked questions

What is HCPCS code G0255?

G0255 is the HCPCS Level II code for current perception threshold/sensory nerve conduction test, (snct) per limb, any nerve. Short descriptor: "Current percep threshold tst".

Does Medicare cover G0255?

Coverage code M — Non-covered by Medicare. Medicare does not cover this item or service.

Which diagnoses support coverage for G0255?

Medicare policy articles that cite G0255 list 2,093 covered ICD-10-CM diagnosis codes across 7 articles. The most cited include A05.1 (Botulism food poisoning), A35 (Other tetanus), A52.15 (Late syphilitic neuropathy). A listed diagnosis is necessary but not sufficient; the policy's other criteria still apply.

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• G0219 — Pet imaging whole body; melanoma for non-covered indications
• G0235 — Pet imaging, any site, not otherwise specified
• G0237 — Therapeutic procedures to increase strength or endurance of respiratory muscles, face to face, one on one, each 15 minutes (includes monitoring)
• G0238 — Therapeutic procedures to improve respiratory function, other than described by g0237, one on one, face to face, per 15 minutes (includes monitoring)
• G0239 — Therapeutic procedures to improve respiratory function or increase strength or endurance of respiratory muscles, two or more individuals (includes monitoring)
• G0245 — Initial physician evaluation and management of a diabetic patient with diabetic sensory neuropathy resulting in a loss of protective sensation (lops) which must include: (1) the diagnosis of lops, (2) a patient history, (3) a physical examination that consists of at least the following elements: (a) visual inspection of the forefoot, hindfoot and toe web spaces, (b) evaluation of a protective sensation, (c) evaluation of foot structure and biomechanics, (d) evaluation of vascular status and skin integrity, and (e) evaluation and recommendation of footwear and (4) patient education
• G0246 — Follow-up physician evaluation and management of a diabetic patient with diabetic sensory neuropathy resulting in a loss of protective sensation (lops) to include at least the following: (1) a patient history, (2) a physical examination that includes: (a) visual inspection of the forefoot, hindfoot and toe web spaces, (b) evaluation of protective sensation, (c) evaluation of foot structure and biomechanics, (d) evaluation of vascular status and skin integrity, and (e) evaluation and recommendation of footwear, and (3) patient education
• G0247 — Routine foot care by a physician of a diabetic patient with diabetic sensory neuropathy resulting in a loss of protective sensation (lops) to include, the local care of superficial wounds (i.e. superficial to muscle and fascia) and at least the following if present: (1) local care of superficial wounds, (2) debridement of corns and calluses, and (3) trimming and debridement of nails
• G0248 — Demonstration, prior to initiation of home inr monitoring, for patient with either mechanical heart valve(s), chronic atrial fibrillation, or venous thromboembolism who meets medicare coverage criteria, under the direction of a physician; includes: face-to-face demonstration of use and care of the inr monitor, obtaining at least one blood sample, provision of instructions for reporting home inr test results, and documentation of patient's ability to perform testing and report results

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Next steps

• Run a reimbursement report for a device billed under G0255
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Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.

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