republic-os/legislation/us/states/co/2023a/hb-23-1183.md

---
type: "Bill"
title: "Prior Authorization For Step-therapy Exception"
description: "The act requires the department of health care policy and financing (state department) review and determine if an exception to step therapy is granted if the prescribing provider submits a prior authorization request with justification and supporting clinical documentation for treatment of a serious or complex medical condition. The act requires the state department to provide a response to a prior authorization request for a step-therapy exception within 24 hours after receipt of the request."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2023A"
identifier: "HB 23-1183"
citation: "Colorado HB 23-1183 (2023A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Emily Sirota", "Faith Winter", "Iman Jodeh"]
version_count: 10
action_count: 15
vote_count: 4
first_action: "2023-02-08T07:00:00+00:00"
last_action: "2023-05-01T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/51d1d646-fbe1-47f1-b81d-e68a50c62e2a"
source_url: "https://leg.colorado.gov/bills/hb23-1183"
source_hash: "8e31812c4fa869ca36a7f772681b06bda026ce806e22103af25b75e7468c60cb"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-co"]
---

# Colorado HB 23-1183 (2023A) — Prior Authorization For Step-therapy Exception

The act requires the department of health care policy and financing (state department) review and determine if an exception to step therapy is granted if the prescribing provider submits a prior authorization request with justification and supporting clinical documentation for treatment of a serious or complex medical condition. The act requires the state department to provide a response to a prior authorization request for a step-therapy exception within 24 hours after receipt of the request.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Committee Amendment** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2023a_hb1183_s_app_002.pdf)
2. **Engrossed (03/17/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1183_eng.pdf)
3. **Final Act (04/20/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1183_enr.pdf)
4. **Introduced (02/08/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1183_01.pdf)
5. **PA1 (03/01/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1183_h_hi_01.pdf)
6. **PA2 (03/17/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1183_h_hi_app_01.pdf)
7. **Reengrossed (03/20/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1183_ren.pdf)
8. **Rerevised (04/12/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1183_rer.pdf)
9. **Revised (04/11/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_1183_rev.pdf)
10. **Signed Act (05/01/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2023a_1183_signed.pdf)

## Votes

- REPASS — **57–5** (pass) · lower
- CONCUR — **59–3** (pass) · lower
- BILL — **26–9** (pass) · upper
- BILL — **59–3** (pass) · lower

## Sponsors

- Emily Sirota — primary (person)
- Faith Winter — primary (person)
- Iman Jodeh — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2023-05-01T06:00:00+00:00** Governor Signed `executive-signature`
- **2023-04-21T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2023-04-20T06:00:00+00:00** Signed by the President of the Senate
- **2023-04-20T06:00:00+00:00** Signed by the Speaker of the House
- **2023-04-13T06:00:00+00:00** House Considered Senate Amendments - Result was to Concur - Repass
- **2023-04-12T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2023-04-11T06:00:00+00:00** Senate Second Reading Passed with Amendments - Floor `reading-2`
- **2023-04-06T06:00:00+00:00** Senate Committee on Appropriations Refer Unamended - Consent Calendar to Senate Committee of the Whole `committee-passage`
- **2023-03-30T06:00:00+00:00** Senate Committee on Health & Human Services Refer Unamended to Appropriations `referral-committee`
- **2023-03-22T06:00:00+00:00** Introduced In Senate - Assigned to Health & Human Services `introduction`
- **2023-03-20T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2023-03-17T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee
- **2023-03-17T06:00:00+00:00** House Committee on Appropriations Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2023-02-28T07:00:00+00:00** House Committee on Health & Insurance Refer Amended to Appropriations `referral-committee`
- **2023-02-08T07:00:00+00:00** Introduced In House - Assigned to Health & Insurance `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/51d1d646-fbe1-47f1-b81d-e68a50c62e2a`. Confidence: reported (aggregated from official Colorado legislature records).