1. (a) Not more than ninety (90) days after the date of the version specified in IC 27-1-1.5 of a diagnostic or procedure code described in this subsection:

   1. (1) an insurer shall begin using the version specified in IC 27-1-1.5 of the:

      1. (A) Current Procedural Terminology (CPT);
      2. (B) International Classification of Diseases (ICD);
      3. (C) American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM);
      4. (D) Current Dental Terminology (CDT);
      5. (E) Healthcare Common Procedure Coding System (HCPCS); and

      6. (F) third party administrator (TPA);

         codes under which the insurer pays claims for services provided under an accident and sickness insurance policy or a worker's compensation policy; and

   2. (2) a provider shall begin using the version specified in IC 27-1-1.5 of the:

      1. (A) Current Procedural Terminology (CPT);
      2. (B) International Classification of Diseases (ICD);
      3. (C) American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM);
      4. (D) Current Dental Terminology (CDT);
      5. (E) Healthcare Common Procedure Coding System (HCPCS); and

      6. (F) third party administrator (TPA);

         codes under which the provider submits claims for payment for services provided under an accident and sickness insurance policy or a worker's compensation policy.

2. (b) If a provider provides services that are covered under an accident and sickness insurance policy or a worker's compensation policy:

   1. (1) after the date of the version specified in IC 27-1-1.5 of a diagnostic or procedure code described in subsection (a); and

   2. (2) before the insurer begins using the version specified in IC 27-1-1.5 of the diagnostic or procedure code;

      the insurer shall reimburse the provider under the version of the diagnostic or procedure code that was specified in IC 27-1-1.5 on the date that the services were provided.

As added by P.L.161-2001, SEC.4. Amended by P.L.66-2002, SEC.16; P.L.124-2018, SEC.84.