ICD-11 classes
01 Certain infectious or parasitic diseases
Pyogenic bacterial infections of the skin or subcutaneous...
1B73 — Ecthyma

ICD-11 1B73 — Ecthyma

Ecthyma is a superficial ulcerative bacterial pyoderma. It is characterised by small, purulent, shallow, punched-out ulcers with thick, brown-black crusts and surrounding erythema. The commonest form is caused by beta-haemolytic streptococci, often in association with Staphylococcus aureus. It is associated with poor hygiene and malnutrition. Ecthyma gangrenosum is an uncommon severe variant caused by Pseudomonas aeruginosa.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis with code 1B73 contains 5 clarifying diagnoses:

  1. 1B73.0 — Streptococcal ecthyma
  2. 1B73.1 — Staphylococcal ecthyma
  3. 1B73.2 — Ecthyma gangrenosum
  4. 1B73.Y — Other specified ecthyma
  5. 1B73.Z — Ecthyma, unspecified

The diagnosis is coded elsewhere:

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