ICD-11 classes
X Extension Codes
Extension codes of particular relevance to skin diseases
Surface topography
XA1RS6 Head and neck
XA20Q1 Head
XA6ZY6 External Ear
XA4E71 Pinna
XA3RC6 Triangular fossa of pinna

ICD-11 XA3RC6 Triangular fossa of pinna

The concavity bounded by the superior and inferior crura of the antihelix and the ascending portion of the helix of the external ear

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.

The diagnosis is coded elsewhere:

• XA4E71 Pinna #32918
• XA4E71 Pinna #35967
• XA4E71 Pinna #37537