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Start free with EleplanPseudohypoparathyroidism type 2
ORPHA:94090Disease
What it is
Pseudohypoparathyroidism type 2 (PHP2) is a type of pseudohypoparathyroidism (PHP) characterized by resistance to parathyroid hormone (PTH), which manifests with hypocalcemia, hyperphosphatemia and elevated PTH levels, absence of Albright's hereditary osteodystrophy (AHO), and normal expression of the Gs protein with a normal urinary cAMP response.
Key facts
- Age of onset
- All ages
- Inheritance
- Not applicable
- Classified as
- Disease
Recorded for the broader condition
- Prevalence
- 1-9 / 1 000 000 (Europe)Pseudohypoparathyroidism
Orphanet records these for the broader condition rather than for this specific form. They are a starting point, not a figure for this subtype — subtypes often differ, and some are defined by being rarer than the condition they sit under.
Signs and symptoms
These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
ICD-10 codes
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.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
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.
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