haau3 FHIR Implementation Guide (HFIG)
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haau3 FHIR Implementation Guide (HFIG) - Local Development build (v1.0.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

NamingSystem: HIOS plan ID

Official URL: https://haau3.com/fhir/NamingSystem/hios-plan-id Version: 1.0.0
Active as of 2026-10-11 Computable Name: HIOSPlanId

A Marketplace plan's 17-character plan ID in CMS's Health Insurance Oversight System (HIOS): the 14-character standard component ID, a hyphen and a two-digit cost-sharing reduction variant (19898FL0340001-01), as CMS's Plan Attributes public use file writes it (PlanId). haau3 publishes this until CMS or HL7 publishes an identifier system for it.

Summary

Defining URLhttps://haau3.com/fhir/NamingSystem/hios-plan-id
Version1.0.0
NameHIOSPlanId
Statusactive
Definition

A Marketplace plan's 17-character plan ID in CMS's Health Insurance Oversight System (HIOS): the 14-character standard component ID, a hyphen and a two-digit cost-sharing reduction variant (19898FL0340001-01), as CMS's Plan Attributes public use file writes it (PlanId). haau3 publishes this until CMS or HL7 publishes an identifier system for it.

Publisherhaau3

Identifiers

TypeValuePreferred
URIhttps://haau3.com/fhir/NamingSystem/hios-plan-idtrue