3.8 Coding System

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Most countries use the ICD-10 coding system (12) to classify congenital anomalies (please refer to Chapter 6 for more information on coding). While countries can develop their own local coding system, WHO recommends the use of ICD-10 for international reporting and comparisons.

Table of Contents

  1. Chapter 3: Approaches to Surveillance
  2. 3.1 Population Coverage
  3. 3.2 Case Ascertainment
  4. 3.3 Case Finding
  5. 3.4 Case Inclusion
  6. 3.5 Description Formats for Congenital Anomalies
  7. 3.6 Age of Inclusion
  8. 3.7 Inclusion of Pregnancy Outcomes
  9. ›3.8 Coding System
  10. 3.9 Potential Inclusion/Exclusion Criteria
  11. 3.10 Core Ascertainment Variables
  12. 3.11 Data-Collection Methods and Tools
  13. 3.12 Data Management and Protocols
  14. 3.13 Data Collection and Management