ICD-10-CM Code For Hyperparathyroidism And Other Disorders Of Parathyroid Gland: Group Overview
The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group E21 includes disorders of the parathyroid gland such as primary, secondary, and tertiary hyperparathyroidism, and other specified parathyroid dysfunctions that impact calcium metabolism and bone health. These ICD-10-CM diagnosis codes are used to document clinical scenarios including biochemical abnormalities, end-organ effects like nephrolithiasis or osteoporosis, or complications requiring surgical or medical management. Accurate coding within the ICD-10-CM E21 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.
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ICD-10-CM E21: Hyperparathyroidism And Other Disorders Of Parathyroid Gland Overview
The ICD-10-CM E21 group represents disorders of the parathyroid glands, including primary, secondary, and tertiary hyperparathyroidism as well as other functional and structural parathyroid conditions affecting calcium metabolism. These diagnoses target endocrine regulation of calcium and bone homeostasis and can have systemic effects on kidneys, bones, and neuromuscular function. Accurate coding is important for clinical documentation and for ensuring appropriate reimbursement and claim adjudication tied to the complexity of endocrine care.