Perichondritis of external ear

Description

Perichondritis is an infection of the tissue surrounding the cartilage of the outer ear, the perichondrium. It usually results from injury to the ear from ear surgery, ear piercing (especially piercing of the cartilage), or trauma from contact sports. The most common bacterium causing perichondritis is Pseudomonas aeruginosa. Presenting features include pain, redness and swelling of the auricle, and fever.

Index terms

Perichondritis of external ear
Perichondritis of auricle
Perichondritis of external auditory canal

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Perichondritis of pinna

Exclusions from above levels

01 – Certain infectious or parasitic diseases
02 – Neoplasms
05 – Endocrine, nutritional or metabolic diseases

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18 – Complications of pregnancy, childbirth and the puerperium
19 – Certain conditions originating in the perinatal period
22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

AA00 – Abscess of external ear
AA01 – Cellulitis of external ear
AA02 – Malignant otitis externa
AA03 – Otomycosis
AA0Y – Other specified infectious diseases of external ear
AA0Z – Infectious diseases of external ear, unspecified

Foundation entity

Perichondritis of external ear – http://id.who.int/icd/entity/934401704

Allowed postcoordination axes

Part of: 10: Diseases of the ear or mastoid process