HCPCS Code G0400

Home sleep test (hst) with type iv portable monitor, unattended; minimum of 3 channels
Code effective Mar 13, 2008

HCPCS Section
Procedures/Professional Services (Temporary Codes)

G0400 is a valid 2026 HCPCS code meaning Home sleep test (hst) with type iv portable monitor, unattended; minimum of 3 channels or (Home sleep test/type 4 porta) for short. HCPCS G0400 has been effective since 03/13/2008 and applies to Diagnostic laboratory.


HCPCS Code Details - G0400

HCPCS Level II Code
Section G - Procedures/Professional Services (Temporary Codes)
HCPCS Code G0400
Description

Long description:
Home sleep test (hst) with type iv portable monitor, unattended; minimum of 3 channels

Short description:
Home sleep test/type 4 porta

HCPCS Pricing indicator 13 - Clinical Lab Fee Schedule - Price established by carriers (e.g., not otherwise classified, individual determination, carrier discretion)
Multiple pricing indicator A - Not applicable as HCPCS priced under one methodology
Coverage code C - Carrier judgment
BETOS2 code T2D - Other tests - other
HCPCS Action code N - No maintenance for this code
Type of service 5 - Diagnostic laboratory
Effective date Effective Mar 13, 2008
Date added Added Mar 13, 2008

See also

  • HCPCS G0399 · Home 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

  • HCPCS G0402 · Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment

1 Two-digit numeric codes are Level I code modifiers copyrighted© by the American Medical Association's Current Procedural Terminology (CPT).

2 BETOS stands for “Berenson-Eggers Type Of Service”


HCPCS Level II codes and descriptors are approved and maintained jointly by the alpha-numeric editorial panel (consisting of CMS, the Health Insurance Association of America, and the Blue Cross and Blue Shield Association). — Updated 6/23/2026

CPT® is a registered trademark of the American Medical Association (AMA). All rights reserved.