Procedure on Number of Vessels and Vascular Stents

Subcategory 00.4, Adjunct vascular system procedures, was created to provide additional information regarding the number of vessels that have been repaired. Codes 00.40, Procedure on single vessel, 00.41, Procedure on two vessels, 00.42, Procedure on three vessels, and 00.43, Procedure on four or more vessels, should be assigned to indicate the specific number of repaired coronary, precerebral, intracranial, peripheral, and other noncoronary vessels. These codes are to be used in conjunction with therapeutic procedure codes such as angioplasty or atherectomy, endarterectomy, insertion of vascular stents, or removal of coronary artery obstruction. In addition to...

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Note:  The following article synopsis was NOT provided by the AHA. It was created by Find-A-Code/innoviHealth.

Article Overview

This article covers an adjunct vascular system procedures subcategory in an inpatient procedure coding classification, focusing on how vessel counts and vascular stent counts are reported alongside related therapeutic vascular procedures. It is aimed at coding professionals working with coronary and peripheral vascular cases, especially when procedure volume, stent insertion counts, and associated procedure categories need to be identified. The article also includes the relevant code groupings and a brief coding example illustrating how the concept is applied in a coronary intervention case.

Why This Topic Matters

Accurate reporting of adjunct vascular procedure information affects procedural specificity in vascular cases and supports consistent classification of interventions involving repaired vessels and stent insertions. It is relevant for coders, auditors, and clinical documentation teams working with vascular procedure coding.

Article Sections

  1. Subcategory 00.4 Adjunct Vascular System Procedures

    Introduces the adjunct vascular system procedure subcategory and describes the general purpose of capturing vessel and stent counts alongside other vascular interventions.

  2. Code assignments for vessel counts and stent counts

    Presents the grouped procedure codes associated with reporting the number of vessels repaired and the number of vascular stents inserted, including related companion procedure categories.

  3. New code 00.40 Procedure on single vessel

    Lists a specific code within the subcategory and provides supporting note-style content about applicability and exclusions.

  4. New code 00.41 Procedure on two vessels

    Lists a specific code within the subcategory and provides supporting note-style content about applicability and exclusions.

  5. New code 00.42 Procedure on three vessels

    Lists a specific code within the subcategory and provides supporting note-style content about applicability and exclusions.

  6. New code 00.43 Procedure on four or more vessels

    Lists a specific code within the subcategory and provides supporting note-style content about applicability and exclusions.

  7. New code 00.45 Insertion of one vascular stent

    Lists a specific code within the subcategory and includes note-style content about unspecified stent counts.

  8. New code 00.46 Insertion of two vascular stents

    Lists a specific code within the subcategory.

  9. New code 00.47 Insertion of three vascular stents

    Lists a specific code within the subcategory.

  10. New code 00.48 Insertion of four or more vascular stents

    Lists a specific code within the subcategory.

  11. Coding example: acute coronary syndrome and angioplasty with stent insertion

    Presents a brief coronary intervention example showing the kinds of procedure reporting concepts discussed in the article.

What You Will Learn

  • How an adjunct vascular procedure subcategory is organized
  • How vessel counts are represented in vascular procedure reporting
  • How vascular stent counts are represented in vascular procedure reporting
  • Which companion vascular procedure categories are referenced
  • What kinds of coronary intervention examples are discussed

Who Should Read This

  • Inpatient coders
  • Medical coding auditors
  • Clinical documentation improvement staff
  • Revenue cycle professionals
  • Health information management professionals

Codes Discussed

  • ICD-9-CM Procedure: 00.40
  • ICD-9-CM Procedure: 00.41
  • ICD-9-CM Procedure: 00.42
  • ICD-9-CM Procedure: 00.43
  • ICD-9-CM Procedure: 00.45
  • ICD-9-CM Procedure: 00.46
  • ICD-9-CM Procedure: 00.47
  • ICD-9-CM Procedure: 00.48
  • ICD-9-CM Procedure: 00.61
  • ICD-9-CM Procedure: 00.62
  • ICD-9-CM Procedure: 00.66
  • ICD-9-CM Procedure: 39.50
  • ICD-9-CM Procedure: 38.10
  • ICD-9-CM Procedure: 38.18
  • ICD-9-CM Procedure: 00.55
  • ICD-9-CM Procedure: 00.63
  • ICD-9-CM Procedure: 00.64
  • ICD-9-CM Procedure: 00.65
  • ICD-9-CM Procedure: 36.06
  • ICD-9-CM Procedure: 36.07
  • ICD-9-CM Procedure: 39.90
  • ICD-9-CM Procedure: 36.09
  • ICD-9-CM Procedure: 36.10
  • ICD-9-CM Procedure: 36.19
  • ICD-9-CM Procedure: 00.21
  • ICD-9-CM Procedure: 00.29
  • ICD-9-CM Diagnosis: 411.1

Code Ranges Discussed

  • ICD-9-CM Procedure: 00.40-00.43
  • ICD-9-CM Procedure: 00.45-00.48
  • ICD-9-CM Procedure: 00.61-00.62
  • ICD-9-CM Procedure: 00.63-00.65
  • ICD-9-CM Procedure: 36.06-36.07
  • ICD-9-CM Procedure: 38.10-38.18
  • ICD-9-CM Procedure: 36.10-36.19
  • ICD-9-CM Procedure: 00.21-00.29

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