Valid for Submission
E20.9 is a billable diagnosis code used to specify a medical diagnosis of hypoparathyroidism, unspecified. The code E20.9 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code E20.9 might also be used to specify conditions or terms like 10p partial monosomy syndrome, cataract in hypoparathyroidism, decreased hormone secretion, deletion of part of chromosome 10, hypocalcemic tetany , hypoparathyroidism, etc.
Unspecified diagnosis codes like E20.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code E20.9:
Inclusion TermsInclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Parathyroid tetany
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code E20.9 are found in the index:
- - Hypoparathyroidism - E20.9
- - Parathyroid tetany - E20.9
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- 10p partial monosomy syndrome
- Cataract in hypoparathyroidism
- Decreased hormone secretion
- Deletion of part of chromosome 10
- Hypocalcemic tetany
- Hypoparathyroidism due to granulomatous disease
- Hypoparathyroidism due to hemochromatosis
- Hypoparathyroidism due to impaired PTH secretion
- Hypoparathyroidism, deafness, renal disease syndrome
- Myopathy in hypoparathyroidism
- Parathyroid hypocalcemic tetany
- HYPOPARATHYROIDISM-. a condition caused by a deficiency of parathyroid hormone or pth. it is characterized by hypocalcemia and hyperphosphatemia. hypocalcemia leads to tetany. the acquired form is due to removal or injuries to the parathyroid glands. the congenital form is due to mutations of genes such as tbx1; see digeorge syndrome; casr encoding calcium sensing receptor; or pth encoding parathyroid hormone.
Diagnostic Related Groups - MS-DRG Mapping
Convert E20.9 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code E20.9 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Most people have four pea-sized glands, called parathyroid glands, on the thyroid gland in the neck. Though their names are similar, the thyroid and parathyroid glands are completely different. The parathyroid glands make parathyroid hormone (PTH), which helps your body keep the right balance of calcium and phosphorous.
If your parathyroid glands make too much or too little hormone, it disrupts this balance. If they secrete extra PTH, you have hyperparathyroidism, and your blood calcium rises. In many cases, a benign tumor on a parathyroid gland makes it overactive. Or, the extra hormones can come from enlarged parathyroid glands. Very rarely, the cause is cancer.
If you do not have enough PTH, you have hypoparathyroidism. Your blood will have too little calcium and too much phosphorous. Causes include injury to the glands, endocrine disorders, or genetic conditions. Treatment is aimed at restoring the balance of calcium and phosphorous.
NIH: National Institute of Diabetes and Digestive and Kidney Diseases
- Calcium - ionized (Medical Encyclopedia)
- Calcium - urine (Medical Encyclopedia)
- Calcium blood test (Medical Encyclopedia)
- Hypercalcemia - discharge (Medical Encyclopedia)
- Hyperparathyroidism (Medical Encyclopedia)
- Hypoparathyroidism (Medical Encyclopedia)
- Parathyroid adenoma (Medical Encyclopedia)
- Parathyroid biopsy (Medical Encyclopedia)
- Parathyroid cancer (Medical Encyclopedia)
- Parathyroid gland removal (Medical Encyclopedia)
- Parathyroid hormone (PTH) blood test (Medical Encyclopedia)
[Learn More in MedlinePlus]