Resource group

RGS defines a logical grouping of resources within scheduling messages. Each RGS instance represents one bookable unit that may include rooms, equipment, and personnel. It appears in scheduling messages S12 through S26.

The segment_action_code field uses HL7 table 0206. Common values are A (Add), U (Update), and D (Delete):

from zato.hl7v2.v2_9 import RGS

rgs = RGS()
rgs.set_id_rgs = '1'

# A = Add/Insert
rgs.segment_action_code = 'A'

# U = Update
rgs.segment_action_code = 'U'

# D = Delete
rgs.segment_action_code = 'D'

The resource_group_id field uses CWE to identify the group:

from zato.hl7v2.v2_9 import RGS, CWE

rgs = RGS()
rgs.set_id_rgs = '1'
rgs.resource_group_id = CWE(
    identifier='GRP-100',
    text='Radiology suite',
    name_of_coding_system='L'
)

Increment the set_id_rgs for each resource group instance in the message:

from zato.hl7v2.v2_9 import RGS, CWE

rgs1 = RGS()
rgs1.set_id_rgs = '1'
rgs1.resource_group_id = CWE(
    identifier='GRP-100',
    text='Radiology suite'
)

rgs2 = RGS()
rgs2.set_id_rgs = '2'
rgs2.resource_group_id = CWE(
    identifier='GRP-200',
    text='OR Suite B'
)

No, resource_group_id is optional. Only set_id_rgs is required. A minimal RGS needs just the set ID:

from zato.hl7v2.v2_9 import RGS

rgs = RGS()
rgs.set_id_rgs = '1'
rgs.segment_action_code = 'A'

Zato connects to any system that speaks HL7v2 over MLLP or FHIR over REST. This includes Epic, Cerner, Meditech, Allscripts, and other EHR platforms.

Yes, Zato has built-in MLLP support for sending and receiving HL7v2 messages. MLLP channels handle the framing protocol automatically.

Zato supports HL7 v2.9, which is backward compatible with earlier versions including v2.3, v2.5, and v2.7. Standard segments and datatypes are available as typed Python classes.

Yes. Zato handles both HL7v2 and FHIR natively, so you can parse v2 messages and build FHIR resources with IG-specific extensions in the same service. Typed Python classes are available for both protocols, including extensions from US Core, UK Core, Da Vinci, and other Implementation Guides.