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HCPCS G0400 Fee Schedule

Last Verified: December 2025

Healthcare providers use this code to document and receive reimbursement for visits that address moderate-level medical decision-making, often including multiple diagnoses or prescription management.

Home sleep test (HST) with type IV portable monitor, unattended; minimum of 3 channels
Key FactDetail
Service Type

Procedures / Professional Services

Sleep Studies, In Home

Complexity LevelLow

National average reimbursement for HCPCS G0400 by major payers:

bcbs

$129.27

uhc

$196.65

aetna

$161.71

cigna

$172.52

Preview provider-level rates for...
For billing codeHCPCS G0400
PayerCodeRateNPITax IDStateSpecialty

Select a payer to view fee schedule data

Choose a payer from the options above to see rates for HCPCS G0400

United
G0400$71.481225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$214.571225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$119.021225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$105.611225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$105.611225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$106.701225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$71.481225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$177.081225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$119.021225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$85.661225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$95.541225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$85.661225014657 - CAROLINA RADIOLOGY ASSOCIATES LLC571049603 - (SC) CAROLINA RADIOLOGY ASSOCIATES, LLCSCDiagnostic Radiology Physician (2085R0202X)
United
G0400$70.501427093046 - HEAD AND NECK ASSOCIATES OF ORANGE COUNTY AN INCORPRATE953856252 - (CA) HEAD AND NECK ASSOCIATES OF ORANGE COUNTY, INC.CASpecialist (174400000X)
United
G0400$87.831629639406 - JACQUELYN HUNTER953856252 - (CA) HEAD AND NECK ASSOCIATES OF ORANGE COUNTY, INC.CAAllergy & Immunology Physician (207K00000X)
United
G0400$158.331730118118 - MICHAEL JAKOBSEN953856252 - (CA) HEAD AND NECK ASSOCIATES OF ORANGE COUNTY, INC.CASpecialist (174400000X)
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist

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HCPCS G0400 vs. Other Sleep Studies, In Home Codes

The HCPCS G0400 code is part of the Procedures / Professional Services services used for Sleep Studies, In Home. It represents a moderate-complexity encounter and is one of several codes that vary based on time spent, level of medical decision-making, and documentation requirements.

The HCPCS G0400 code involves more provider time and moderate medical decision-making, unlike lower-level codes that require less time and simpler assessments. It typically includes multiple diagnoses, medication management, or test interpretation, leading to higher reimbursement and more detailed documentation requirements.

CodeComplexityDescription
G0399-HCPCSLowHome sleep test (HST) with type III portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ecg/heart rate and 1 oxygen saturation
G0400-HCPCSLowHome sleep test (HST) with type IV portable monitor, unattended; minimum of 3 channels
G0402-HCPCSLowInitial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of Medicare enrollment

What is a fee schedule?

A fee schedule is a list of fixed prices that healthcare providers charge for specific services, including HCPCS G0400. These prices vary depending on payer type (Medicare, Medicaid, private insurance), geographic location, and provider contracts.

Understanding the G0400 fee schedule helps patients estimate costs and providers optimize billing for accurate reimbursements.

Factors that affect fee schedules


Medicare & Medicaid Rates

Government-set reimbursement amounts


Private Insurance Rates

Negotiated rates between providers and insurance companies


Geographic Location

Costs may be higher in urban areas.


Provider Type

Hospital providers may have different rates than private practice.

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