A condition where the parathyroid glands produce too little hormone, causing low blood calcium levels.
During the first three months after diagnosis, medical records confirming the initial diagnosis of hypoparathyroidism are the core evidence for the 100% rating. After that period, the evidence that matters is whatever documents your chronic residuals. For kidney stones, imaging studies and treatment records are relevant. For cataracts, ophthalmology examination findings matter. For decreased kidney function, lab results such as creatinine levels and glomerular filtration rate reports are pertinent. For congestive heart failure, cardiology records and functional assessments are relevant. Statements from you or people who know you describing how these complications affect your work and daily life can also support the picture the medical records show.
Conditions that are often caused or made worse by this one. If you have any of these, they may be claimable as secondary service connection.