Syndrome of inappropriate antidiuretic hormone secretion (SIADH) is a condition in which the body makes too much antidiuretic hormone (ADH). This hormone helps the kidneys control the amount of water your body loses through the urine.
This article describes a pathophysiologic approach to the diagnosis of disorders of antidiuretic hormone and water balance, including diabetes insipidus, primary polydipsia, hypernatremia, and hyponatremia.
The most common causes of SIADH are malignancy, pulmonary disorders, CNS disorders and medication; these are summarised in Table 3. SIADH was originally described by Bartter & Schwartz in two patients with lung carcinoma, who had severe hyponatraemia at presentation (29).
Impaired AVP secretion or response results in impaired renal concentration and is termed diabetes insipidus (DI). Hyponatremia that results from AVP production in the absence of an osmotic or hemodynamic stimulus is termed syndrome of inappropriate antidiuretic hormone secretion (SIADH).
When there's too much ADH in your blood, syndrome of inappropriate ADH (SIADH) may be the cause. If the condition is acute, you may have a headache, nausea, or vomiting. In severe cases, coma and convulsions can occur.
Low levels of anti-diuretic hormone will cause the kidneys to excrete too much water. Urine volume will increase leading to dehydration and a fall in blood pressure.
Complications of SIADH depend on how low blood sodium levels are....ComplicationsHeadaches.Depression.Memory problems.Muscle cramps.Tremors.
E22.2 is a billable ICD code used to specify a diagnosis of syndrome of inappropriate secretion of antidiuretic hormone. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
Syndrome of inappropriate antidiuretic hormone secretion (SIADH) is characterized by excessive release of antidiuretic hormone from the posterior pituitary gland or another source.
E22.2 is a valid billable ICD-10 diagnosis code for Syndrome of inappropriate secretion of antidiuretic hormone . It is found in the 2021 version of the ICD-10 Clinical Modification (CM) and can be used in all HIPAA-covered transactions from Oct 01, 2020 - Sep 30, 2021 .
DO NOT include the decimal point when electronically filing claims as it may be rejected. Some clearinghouses may remove it for you but to avoid having a rejected claim due to an invalid ICD-10 code, do not include the decimal point when submitting claims electronically. See also: Antidiuretic hormone syndrome E22.2.
The cause of SIADH may not be known. The following are common causes of SIADH:
Salt solutions given slowly through an IV increase the amount of salt in your blood. This corrects the balance of salt in your body and decreases your symptoms.