AHA Coding Clinic® for ICD-9 - 1992 First Quarter; Q & A
Thrombosis and Thrombophlebitis
In the Third Quarter 1991 issue of Coding Clinic you described thrombosis as the formation of a clot in a blood vessel and thrombophlebitis as the inflammation of the lining of a vein, indicating that only the thrombophlebitis should be reported when the physician includes both conditions in the diagnostic statement. What code should be assigned when the physician describes conditions associated with phlebitis (swelling, erythema, pain, and induration) but lists only the diagnosis of deep vein thrombosis (DVT)? ...
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Article Overview
This premium article discusses a Coding Clinic question about how thrombosis and thrombophlebitis were distinguished in diagnosis statements and how that context relates to deep vein thrombosis. It is relevant for coding professionals working with vascular diagnoses and historical ICD-9-CM guidance, especially where physician terminology and diagnostic wording affect record interpretation. The article also notes an ICD-9-CM code change effective October 1, 2004, and provides guidance-oriented discussion around these conditions.
Why This Topic Matters
Accurate interpretation of vascular diagnosis terminology can affect code assignment and consistency in medical record coding. The article is useful for coders who need to understand how older Coding Clinic guidance and later code-set changes relate to thrombosis-related diagnoses.
What You Will Learn
- How the article frames the distinction between thrombosis and thrombophlebitis in diagnosis statements.
- What historical coding context is discussed for deep vein thrombosis.
- How Coding Clinic guidance is applied to vascular diagnosis wording.
- The relevance of a code-set change effective in 2004.
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation integrity specialists
- Billing and reimbursement staff
Codes Discussed
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