Program_Memos / 2000 / AB-00-57

Why This Topic Matters

The update affects how claims were accepted and processed during the transition period, and it includes changes that impacted diagnosis, procedure, and edit systems used by Medicare contractors and providers. Understanding the scope helps readers assess whether the full memorandum is relevant to ICD-9-CM maintenance, claim-processing updates, and Medicare billing operations.

Article Sections

1. Program Memorandum Overview

   Introduces the Medicare contractor update and the general purpose of the memorandum. It also identifies the effective and implementation timing at a high level.

2. Carrier Information

   Summarizes instructions directed to carriers regarding acceptance of updated diagnosis coding during the transition period and contractor bulletin communication. The section also references the general need to keep systems aligned with the annual update.

3. Intermediary Information

   Covers instructions for intermediaries on updated diagnosis and procedure coding, related grouper and code-editor updates, and outpatient billing implications. It addresses distribution and implementation timing for affected providers.

4. Attachment A — ICD-9-CM Table of Drugs and Chemicals Addenda

   Lists addenda entries tied to the ICD-9-CM drug and chemical table. The attachment reflects updates affecting poisoning, accident, therapeutic use, and related index structure.

5. Attachment B — ICD-9-CM Index Addenda

   Presents a long set of index revisions, additions, and deletions across many ICD-9-CM diagnosis terms. The attachment spans multiple body systems, conditions, history and screening topics, and E-code index updates.

6. Attachment C — ICD-9-CM Tabular Addenda

   Shows tabular ICD-9-CM revisions and new entries for diagnosis categories and subcategories. It includes diagnostic updates, screening categories, and related exclusion and inclusion changes.

7. Attachment D — Addenda FY 2001 Final ICD-9-CM Volume 3 Procedures

   Provides procedure code addenda for ICD-9-CM Volume 3, including new codes, revised code titles, and index changes. The attachment reflects procedure-related updates effective with the October 1, 2000 transition.