# NY IME / SLU Program Guide | Medrecords AI

> New York evaluates permanent impairment through its own Schedule Loss of Use guidelines (2018) rather than the AMA Guides, certified on Form C-4.3 at maximum medical improvement.

Canonical page: https://medrecords.ai/ime-hub/states/ny/

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## Program overview

The Board's 2018 SLU guidelines apply when a claimant reaches MMI; examiners measure active range of motion and compare to the contralateral side where applicable. The doctor reports MMI and permanent impairment on Form C-4.3.

## MMI definition

12 NYCRR 324.1 defines MMI as the point where the claimant has recovered to the greatest extent expected and no further improvement is reasonably expected; in non-surgery/non-fracture cases MMI cannot be found before six months from injury.

## Key facts

- **Program:** IME / SLU
- **Agency:** New York Workers' Compensation Board
- **Statute / rules:** 12 NYCRR 324; 12 NYCRR 325-1.6
- **AMA Guides edition:** Not AMA-based (New York SLU guidelines)
- **Edition basis:** 2018 Guidelines for Determining Permanent Impairment and Loss of Wage Earning Capacity
- **MMI rules:** MMI defined at 12 NYCRR 324.1; no MMI before 6 months for non-surgical/non-fracture cases
- **Key forms:** Form C-4.3 (Doctor's Report of MMI/Permanent Impairment)
- **Fee schedule:** WCB medical fee schedule (verify current)
- **Telehealth:** Not verified in this pass

## Sources

- [NY WCB 2018 SLU Guidelines](https://es.wcb.ny.gov/content/main/TheBoard/2018-impairment-guidelines-determining-schedule-loss-use-slu.pdf)
- [NY WCB Subject Number 046-472](https://www.wcb.ny.gov/content/main/SubjectNos/sn046_472.jsp)
- [12 NYCRR 324 (definitions)](https://regulations.justia.com/states/new-york/title-12/chapter-v/subchapter-c/part-324/section-324-1/)

Last verified: 2026-08-15