AHA Coding Clinic® for ICD-9 - 1993 Third Quarter
Coding Questions and Answers
This column of questions and answers to the HCFA Regional offices from HCFA's Bureau of Policy Development will be an ongoing feature of Coding Clinic for ICD-9-CM. The answers are being published as part of our overall effort to assist all coders who need guidance with these issues. The effective date for each question is listed. As with all material that appears in this publication, the answers have been approved by the Cooperating Parties (AHA, AHIMA, HCFA, and NCHS). 3/25/93 Question: What is the principal diagnosis when an adult patient is admitted with Marfan syndrome for heart valve replacement...
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Article Overview
This article is an older Coding Clinic for ICD-9-CM question-and-answer column from HCFA’s Bureau of Policy Development. It addresses a small set of coding scenarios involving diagnosis coding, procedure coding, transplant-related complications, and updates tied to effective dates and code title changes. It is useful for coders and coding educators who need historical ICD-9-CM guidance and context on how official advice was communicated at the time.
Why This Topic Matters
It helps readers understand how official ICD-9-CM guidance was presented for specific coding questions, including cases where later updates changed the available coding options. This is relevant for historical reference, audit support, education, and interpreting legacy documentation.
Article Sections
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Column introduction
Introductory material describing the Q&A format, its source, and the approval process behind the published answers.
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Marfan syndrome and principal diagnosis
A diagnosis-coding question involving an adult admission with an inherited connective tissue disorder and related cardiovascular procedures.
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Altered mental status
A question about coding a vague mental status statement, along with later notes reflecting code availability and title changes over time.
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Temporary transvenous pacemaker with overdrive atrial pacing
A procedure-coding question involving pacing and rhythm conversion, including discussion of related procedural categories and an excludes note.
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Radical prostatectomy with lymph node dissection
A coding question about whether one or more procedure codes are needed when prostate surgery is performed with lymph node dissection.
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Transplant complication and infection
A transplant-related complication question addressing how to code a post-transplant infection and related complication reporting.
What You Will Learn
- How the article is structured as a Coding Clinic Q&A column
- What general types of ICD-9-CM coding questions are discussed
- How the article treats diagnosis coding questions versus procedure coding questions
- How transplant-related complications are discussed in the context of official guidance
- How effective dates and code title updates are presented in a legacy coding publication
Who Should Read This
- Medical coders
- Coding auditors
- Coding educators
- Clinical documentation staff
- Health information management professionals
Codes Discussed
Code Ranges Discussed
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