ICD-10: One Old Rule is New Again Under ICD-10

Why This Topic Matters

Understanding the basic conventions of ICD-10-CM helps coders read the code set correctly and interpret documentation-related notation in manuals and online tools. The article is useful for anyone learning the new diagnosis coding format and the language used in ICD-10-CM references.

Article Sections

1. Getting started with ICD-10-CM

   An introductory orientation to the diagnosis code set and the transition from earlier coding conventions. This section frames the article’s focus on basic code-reading concepts.

2. Seventh character, placeholder, and dash notation

   A discussion of structural elements used in ICD-10-CM code formatting and how incomplete code presentations are shown in reference materials.

3. Abbreviations

   An overview of common ICD-10 abbreviations and the general categories they represent within the diagnosis code set.

4. Punctuation

   A review of punctuation used in the Alphabetic Index and Tabular List, including how certain punctuation signals relationships or reference information.

5. Phrases

   A summary of common note phrases and cross-reference language found in ICD-10-CM manuals and related coding references.