ICD-11 classes
14 Diseases of the skin
Skin disorders involving certain specific body regions
Skin disorders involving the genital and perianal regions
Dermatoses of the anus, perianal area or perineum
EG63 — Sacrococcygeal pilonidal disease

ICD-11 EG63 — Sacrococcygeal pilonidal disease

Pilonidal disease describes a spectrum of clinical presentations, ranging from asymptomatic hair-containing cysts and sinuses to large symptomatic abscesses of the sacrococcygeal area which tend to recur. It is found predominantly in white males in their second and third decades and is thought to result from penetration of hair into the tissues with the formation of sinuses and a foreign-body granulomatous response. Risk factors for pilonidal disease include male gender, Caucasian ethnicity, sitting occupations, obesity, a deep natal cleft, and presence of hair within the natal cleft.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis with code EG63 contains 3 clarifying diagnoses:

  1. EG63.0 — Sacrococcygeal pilonidal sinus
  2. EG63.1 — Sacrococcygeal pilonidal cyst
  3. EG63.2 — Sacrococcygeal pilonidal abscess

The diagnosis is coded elsewhere:

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