# Hawaii HB 598: RELATING TO HEALTH.

Hawaii HB 598, RELATING TO HEALTH., is a 2025–2026 Regular Session (Year 1) House bill sponsored by Lauren Matsumoto (Republican); status first reading, last action 2025-01-21 (Introduced and Pass First Reading.) (as of 2026-10-17).

- Canonical: https://policyrisk.com/state-bill/HI-HB598-2025
- As of: 2026-10-17
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Bill: Hawaii HB 598
- State: Hawaii
- Session: 2025–2026 Regular Session (Year 1)
- Title: RELATING TO HEALTH.
- Status: first reading
- Chamber: House
- Introduced: 2025-01-17
- Last action: 2025-01-21, Introduced and Pass First Reading.
- Sponsor: Lauren Matsumoto (Republican)
- Cosponsors: 9
- Subjects: Health Care, Insurance, Coverage, Breast Cancer Screenings, Breast Examinations, Cost-Sharing, Prohibited, HLT, CPC, FIN
- Touches household money: no
- Economic provisions PRIA read: 0

## Summary

Prohibits the imposition of cost-sharing requirements for certain diagnostic and supplemental breast examinations.

## Bill overview

No economic impacts identified for this bill.

## Sponsors and cosponsors

- Sponsor: Lauren Matsumoto (Republican), House
- Cosponsor: Cory M. Chun (Democratic), House
- Cosponsor: Diamond Garcia (Republican), House
- Cosponsor: Greggor Ilagan (Democratic), House
- Cosponsor: Kim Coco Iwamoto (Democratic), House
- Cosponsor: Kirstin Kahaloa (Democratic), House
- Cosponsor: LAMOSAO
- Cosponsor: Elijah Pierick (Republican), House
- Cosponsor: Mahina Poepoe (Democratic), House
- Cosponsor: Chris Todd (Democratic), House

## Actions (3)

- 2025-01-21: Introduced and Pass First Reading. (House)
- 2025-01-21: Referred to HLT, CPC, FIN, referral sheet 2 (House)
- 2025-01-17: Pending introduction. (House)

## Bill text

- Original: [HTML](https://data.capitol.hawaii.gov/sessions/session2025/bills/HB598_.HTM), [PDF](https://data.capitol.hawaii.gov/sessions/session2025/bills/HB598_.pdf)

## Related bills

- SB 572: RELATING TO HOUSING. (signed)
- HB 431: RELATING TO HOUSING. (signed)
- HB 420: RELATING TO REMEDIES. (signed)
- SB 1296: RELATING TO DISASTER RECOVERY. (signed)
- HB 830: RELATING TO HISTORIC PRESERVATION REVIEWS. (signed)
- HB 1064: RELATING TO FIRE PROTECTION. (signed)

## Sources
- [Original (HTML)](https://data.capitol.hawaii.gov/sessions/session2025/bills/HB598_.HTM)
- [Original (PDF)](https://data.capitol.hawaii.gov/sessions/session2025/bills/HB598_.pdf)

## Related
- [SB 572: RELATING TO HOUSING.](https://policyrisk.com/state-bill/HI-SB572-2025)
- [HB 431: RELATING TO HOUSING.](https://policyrisk.com/state-bill/HI-HB431-2025)
- [HB 420: RELATING TO REMEDIES.](https://policyrisk.com/state-bill/HI-HB420-2025)
- [SB 1296: RELATING TO DISASTER RECOVERY.](https://policyrisk.com/state-bill/HI-SB1296-2025)
- [HB 830: RELATING TO HISTORIC PRESERVATION REVIEWS.](https://policyrisk.com/state-bill/HI-HB830-2025)
- [HB 1064: RELATING TO FIRE PROTECTION.](https://policyrisk.com/state-bill/HI-HB1064-2025)
- [Hawaii bills](https://policyrisk.com/states/hawaii/bills)
- [Hawaii state hub](https://policyrisk.com/states/hawaii)
- [All state legislation](https://policyrisk.com/state-bills)

Source: PRIA, https://policyrisk.com/state-bill/HI-HB598-2025 (as of 2026-10-17).