AHA Coding Clinic® for ICD-9 - 1986 January - February; Coding Guidelines

Multiple Coding of Diagnoses

Note:As of October 1, 2004, code V58.66, was created to report the use of aspirin on a long-term basis. Multiple coding is required for certain conditions not subject to the rules for combination codes. Instructions for conditions that require multiple coding appear in the Alphabetic Index and the Tabular List. Alphabetic Index: Codes for both etiology and manifestation of a disease appear following the subentry term, with the second code italicized and in slanted brackets. Assign both codes in the same sequence in which they appear in the Alphabetic Index. Tabular List: Instructional terms, such as "Code also...

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