ICD-11 classes
X Extension Codes

ICD-11 X Extension Codes

Extension codes should never be used in primary classification coding or tabulation.They are provided for use as supplementary or additional codes when desired to identify more detail in statistical categories classified elsewhere.Extension codes may be used alone in other contexts.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis contains 14 clarifying diagnoses:

1. Severity Scale Value
   It contains 2 clarifying diagnoses.
2. Temporality
   It contains 3 clarifying diagnoses.
3. Aetiology
   It contains 3 clarifying diagnoses.
4. Topology Scale Value
   It contains 4 clarifying diagnoses.
5. Anatomy and topography
   It contains 3 clarifying diagnoses.
6. Histopathology
   It contains 50 clarifying diagnoses.
7. Dimensions of injury
   It contains 5 clarifying diagnoses.
8. Dimensions of external causes
   It contains 18 clarifying diagnoses.
9. Consciousness
   It contains 4 clarifying diagnoses.
10. Substances
    It contains 3 clarifying diagnoses.
11. Diagnosis code descriptors
    It contains 7 clarifying diagnoses.
12. Capacity or context
    It contains 2 clarifying diagnoses.
13. Health Devices, Equipment and Supplies
    It contains 22 clarifying diagnoses.
14. Extension codes of particular relevance to skin diseases
    It contains 9 clarifying diagnoses.