Diagnosis Code E21.2
Information for Medical Professionals
The diagnosis code E21.2 is grouped in the following Diagnostic Related Group(s) (MS-DRG V34.0)
- 643 - ENDOCRINE DISORDERS WITH MCC
- 644 - ENDOCRINE DISORDERS WITH CC
- 645 - ENDOCRINE DISORDERS WITHOUT CC/MCC
Convert to ICD-9 General Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
- 252.08 - Hyperparathyroidism NEC
- Aberrant parathyroid gland
- Congenital anomaly of parathyroid glands
- Ectopic hyperparathyroidism
- Ectopic parathyroid hormone-related protein secretion
- Tertiary hyperparathyroidism
Index of Diseases and Injuries
References found for the code E21.2 in the Index of Diseases and Injuries:
- Inclusion Terms: Inclusion terms
List of terms is included under some codes. 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.
- Tertiary hyperparathyroidism
- Type 1 Excludes Notes: Type 1 Excludes Notes
A type 1 Excludes note is a pure excludes note. It means “NOT CODED HERE!” An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- familial hypocalciuric hypercalcemia (E83.52)
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
- Calcium - urine
- Calcium blood test
- Hypercalcemia - discharge
- Parathyroid adenoma
- Parathyroid biopsy
- Parathyroid cancer
- Parathyroid gland removal
- Parathyroid hormone (PTH) blood test