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Chapter 4.5. Division of Workers' Compensation
Article 5.3. Official Medical Fee Schedule -- Services Rendered after January 1, 2004
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§9789.50. Pathology and Laboratory.

(a) Effective for services after January 1, 2004, the maximum reasonable fees for pathology and laboratory services shall not exceed one hundred twenty (120) percent of the rate for the same procedure code in the CMS' Clinical Diagnostic Laboratory Fee Schedule, as established by Sections 1833 and 1834 of the Social Security Act (42 U.S.C. ยงยง 1395l and 1395m) and applicable to California. The Clinical Diagnostic Laboratory Fee Schedule, which can be found on the CMS Internet Website ( is incorporated by reference and will be made available on the Division of Workers' Compensation's Internet Website ( or upon request to the Administrative Director at:
P.O. BOX 420603
(b) The following procedures in the Special Services and Reports section of the OMFS 2003 will not be valid for services rendered after January 1, 2004: CPT Codes 99000, 99001, 99017, 99019, 99020, 99021, 99026, and 99027.
Note: Authority cited: Sections 133, 4603.5, 5307.1 and 5307.3, Labor Code. Reference: Sections 4600, 4603.2 and 5307.1, Labor Code.
1. New section filed 1-2-2004 as an emergency; operative 1-2-2004 (Register 2004, No. 2). A Certificate of Compliance must be transmitted to OAL by 5-3-2004 or emergency language will be repealed by operation of law on the following day.
2. Certificate of Compliance as to 1-2-2004 order, including new subsection (c), transmitted to OAL 4-30-2004 and filed 6-15-2004 (Register 2004, No. 25).
3. Amendment of subsection (a) and repealer of subsection (c) filed 2-4-2015; operative 3-5-2015. Submitted to OAL for printing only pursuant to Government Code section 11340.9 (Register 2015, No. 6).

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