This code system http://hl7.org/fhir/service-category defines many codes, of which the following are some examples:

CodeDisplayDefinition
1AdoptionAdoption
2Aged CareAged Care
34Allied HealthAllied Health
3Alternative/Complementary TherapiesAlternative & Complementary Therapies
4Child Care /KindergartenChild Care and/or Kindergarten
5Child DevelopmentChild Development
6Child Protection & Family ServicesChild Protection & Family Services
7Community Health CareCommunity Health Care
8CounsellingCounselling
36Crisis Line (GPAH use only)Crisis Line (GPAH use only)
9Death ServicesDeath Services
10DentalDental
11Disability SupportDisability Support
12Drug/AlcoholDrug/Alcohol
13Education & LearningEducation & Learning
14Emergency DepartmentEmergency Department
15EmploymentEmployment
16Financial & Material AidFinancial & Material aid
17General PracticeGeneral Practice/GP (doctor)
35HospitalHospital
18Housing/HomelessnessHousing/Homelessness
19InterpretingInterpreting
20JusticeJustice
21LegalLegal
22Mental HealthMental Health
38NDIANDIA
23Physical Activity & RecreationPhysical Activity & Recreation
24RegulationRegulation
25Respite/Carer SupportRespite/Carer Support
26Specialist Clinical PathologySpecialist Clinical Pathology - requires referral
27Specialist MedicalSpecialist Medical - requires referral
28Specialist Obstetrics & GynaecologySpecialist Obstetrics & Gynaecology - requires referral
29Specialist PaediatricSpecialist Paediatric - requires referral
30Specialist Radiology/ImagingSpecialist Radiology/Imaging - requires referral
31Specialist SurgicalSpecialist Surgical - requires referral
32Support Group/sSupport group/s
37Test Message (HSD admin)Test Message (HSD admin use only)
33TransportTransport