(b) Not more than ninety (90) days after the effective date of a diagnostic or procedure code described in this subsection:

(A) current procedural terminology (CPT);

(B) international classification of diseases (ICD);

(C) American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders (DSM);

(D) current dental terminology (CDT);

(E) Healthcare common procedure coding system (HCPCS); and

(F) third party administrator (TPA);

codes under which the office processes claims for services provided under the Medicaid program; and

(2) a provider shall begin using the most current version of the:

(A) current procedural terminology (CPT);

(B) international classification of diseases (ICD);

(C) American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders (DSM);

(D) current dental terminology (CDT);

(E) Healthcare common procedure coding system (HCPCS); and

(F) third party administrator (TPA);

codes under which the provider submits claims for payment for services provided under the Medicaid program.

     (c) If a provider provides services that are covered under the Medicaid program:

(1) after the effective date of the most current version of a diagnostic or procedure code described in subsection (b); and

(2) before the office begins using the most current version of the diagnostic or procedure code;

the office shall reimburse the provider under the version of the diagnostic or procedure code that was in effect on the date that the services were provided.

As added by P.L.161-2001, SEC.2. Amended by P.L.66-2002, SEC.4; P.L.27-2011, SEC.3.