G0399

HCPCS

Home sleep test/type 3 porta

Official HCPCS Level II long descriptor

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 Level II code G0399 is maintained by CMS and is active in the current quarterly release.

Short descriptor

Home sleep test/type 3 porta

Added to HCPCS: 2008-03-13

Nearby codes in G0

G0381Lev 2 hosp type b ed visit
G0382Lev 3 hosp type b ed visit
G0383Lev 4 hosp type b ed visit
G0384Lev 5 hosp type b ed visit
G0390Trauma respons w/hosp criti
G0396Alcohol/subs interv 15-30mn
G0397Alcohol/subs interv >30 min
G0398Home sleep test/type 2 porta
G0400Home sleep test/type 4 porta
G0402Initial preventive exam
G0403Ekg for initial prevent exam
G0404Ekg tracing for initial prev
G0405Ekg interpret & report preve
G0406Inpt/tele follow up 15
G0407Inpt/tele follow up 25
G0408Inpt/tele follow up 35

Where this code sits

HCPCS Level II G0 codes

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Source

HCPCS Level II July 2026 quarterly update. Centers for Medicare & Medicaid Services (CMS), “July 2026 Alpha-Numeric HCPCS File” (HCPC2026_JUL_ANWEB_06172026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.