Mont. Admin. R. 37.85.403 - ICD CLINICAL MODIFICATION (CM) AND PROCEDURAL CODING SYSTEM (PCS) SERVICES
(1) The department
adopts and incorporates by reference the Diagnosis coding practice of
International Classification of Diseases (ICD) published by the World Health
Organization. The ICD is used as a health care classification system for
diseases and health conditions.
(a) For dates
of service on or before September 30, 2015, the ICD edition being utilized will
be the ninth revision (ICD-9) to code the diagnosis of services.
(b) For dates of service October 1, 2015 and
thereafter the ICD edition being utilized will be the tenth revision (ICD-10)
to code the diagnosis of services. ICD-10 consists of the following codes sets:
(i) ICD-Clinical Modification (CM); and
(ii) ICD-Procedure Coding System
(PCS).
(c) For inpatient
claims with a discharge date on or after October 1, 2015, the tenth revision
(ICD-10) must be utilized.
(d)
Outpatient claims with dates of service that span the utilization dates must be
split based on date of service in order to utilize the appropriate edition as
noted in (a) and (b).
(e) Per
45 CFR
162.1002, ICD-10 will replace ICD-9 for dates
of service October 1, 2015 and after. A copy of the ICD codes may be obtained
at http://www.medicalcodingbooks.com/.
Notes
53-2-201, 53-6-101, 53-6-113, MCA; IMP: 53-2-201, 53-6-101, 53-6-113, MCA;
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