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CMS Manual System Department of Health & Human Services (DHHS) Pub 100-04 Medicare Claims Processing Centers for Medicare & Medicaid Services (CMS) Transmittal 10540 Date: December 31, 2020 Change Request 12114 SUBJECT: January 2021 Integrated Outpatient Code Editor (I/OCE) Specifications Version I. SUMMARY OF CHANGES: This notification provides the Integrated OCE instructions and specifications for the Integrated OCE that will be utilized under the Outpatient Prospective Payment System (OPPS) and non-OPPS for hospital outpatient departments, community mental health centers, all non-OPPS providers, and for limited services when provided in a home health agency not under the Home Health Prospective Payment System or to a hospice patient for the treatment of a non-terminal illness. The attached recurring update notification applies to publication 100-04, chapter 4, section EFFECTIVE DATE: January 1, 2021 *Unless otherwise specified, the effective date is the date of service.

Added ICD-10-CM Diagnosis Codes Diagnosis Eff Date Description J1282 2021-01-01 Pneumonia due to coronavirus disease 2019 M3581 2021-01-01 Multisystem inflammatory syndrome M3589 2021-01-01 Other specified systemic involvement of connective tissue Z1152 2021-01-01 Encounter for screening for COVID-19 Z20822 2021-01-01 Contact with and ...

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