Struktur Tingkatan dalam FHIR Level 1 – Foundation (Dasar) Dokumentasi dasar Format data: XML, JSON, RDF Definisi tipe data & ekstensi Level 2 – Implementasi & Keamanan Implementer Support → unduhan , manajemen versi , use case, testing. Security & Privacy → keamanan data, persetujuan pasien (consent), asal data (provenance), audit. Conformance → definisi struktur , capability statement, panduan implementasi , profiling. Terminology → sistem kode , value set, peta konsep , layanan terminologi . Exchange → pertukaran data via REST API, dokumen , pesan , layanan , database, dan subscription. Level 3 – Administration ( Administrasi ) Data dasar : Patient, Practitioner, CareTeam , Device, Organization, Location, HealthcareService . Level 4 – Clinical & Operasional Clinical → alergi , diagnosa , prosedur , rencana perawatan , asesmen risiko . Diagnostics → observasi , laporan medis , spesimen , imaging, genomik . Medications → permintaan obat , distribusi , pemberian obat , imunisasi . Workflow → penjadwalan , rujukan , tugas , perencanaan . Financial → klaim , akun , invoice, cakupan asuransi , benefit. Level 5 – Advanced Reasoning ( Penalaran Lanjutan ) Clinical Reasoning → pustaka klinis , panduan keputusan , laporan pengukuran . Medication Definition → definisi produk obat , kemasan , otorisasi regulasi .