Complement hyperactivation-angiopathic…

Caring for someone with this diagnosis? Eleplan keeps diagnoses, medications, documents and every specialist in one plan.

Start free with Eleplan

Complement hyperactivation-angiopathic thrombosis-protein-losing enteropathy syndrome

ORPHA:566175Disease

Also called CD55 deficiency · CHAPLE syndrome

What it is

A rare genetic disease characterized by CD55 deficiency with complement hyperactivation, angiopathic thrombosis, and protein-losing enteropathy with abdominal pain, diarrhea, vomiting, primary intestinal lymphangiectasia, hypoproteinemic edema, and malabsorption, leading to anemia and growth delay. Bowel inflammation and recurrent infections associated with hypogammaglobulinemia may also be observed.

Key facts

Prevalence
<1 / 1 000 000
Age of onset
Childhood, Infancy
Inheritance
Autosomal recessive
Classified as
Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Gene

CD55Disease-causing germline mutation(s)

ICD-10 codes

D84.1filed under a broader ICD-10 category — shared with 15 other rare diseases

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Cross-references

MEDDRA 10085728OMIM 226300UMLS C4538570

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

Powered by Eleplan

A rare diagnosis is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, so you are not retelling the same story to every new specialist. With Ellie, your AI care assistant, on top of it. Free to start.