US · guidance
CMS Pub. 100-04, ch. 32, § 310.3
Correct Place of Service (POS) Code for Transesophageal Doppler
Cardiac Monitoring Services on Professional Claims
(Rev. 2743, Issued: 07-25-13, Effective: 07-01-01-13, Implementation, 08-26-13)
Contractors shall pay for Transesophageal Doppler cardiac monitoring, G9157, only when
services are provided at POS 21.
Contractors shall deny HCPCS G9157 when billed globally in any POS other than 21 for
ventilated patients in the ICU or for operative patients with a need for intra-operative fluid
optimization using the following messages:
CARC 58: “Treatment was deemed by the payer to have been rendered in an inappropriate or
invalid place of service. Note: Refer to the 835 Healthcare Policy Identification Segment
(loop 2110 Service Payment Information REF), if present.
MSN 16.2: This service cannot be paid when provided in this location/facility.
Group Code: CO
History
(Rev. 2743, Issued: 07-25-13, Effective: 07-01-01-13, Implementation, 08-26-13)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
494d9eb80aee41e8bea4a63e75fbf309aea67fc5c00ee3ebda68f83b61587da9
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