Diagnosis Code: E21.1

Short Description: Secondary hyperparathyroidism, not elsewhere classified

Long Description: Secondary hyperparathyroidism, not elsewhere classified

The code E21.1 is VALID for claim submission

Code Classification:

• Endocrine, nutritional and metabolic diseases (E00–E89)
  • Disorders of other endocrine glands (E20-E35)
    • Hyperparathyroidism and other disorders of parathyroid gland (E21)
      • E21.1 Secondary hyperparathyroidism, not elsewhere classified

Code Version: 2022 ICD-10-CM

Synonyms

• Hyperparathyroidism due to intestinal malabsorption
• Hyperparathyroidism due to lithium therapy
• Hyperparathyroidism due to vitamin D deficiency
• Secondary hyperparathyroidism
• Secondary hyperparathyroidism
• Secondary hyperparathyroidism of nonrenal origin

Diagnostic Related Group(s)

The code E21.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)

• Endocrine Disorders With Mcc (643)
• Endocrine Disorders With Cc (644)
• Endocrine Disorders Without Cc/mcc (645)

References to Index of Diseases and Injuries

The code E21.1 has the following ICD-10-CM references to the Index of Diseases and Injuries

• Type 1 Excludes Notes:
  • secondary hyperparathyroidism of renal origin (@N25.81*)

Crosswalk Information

Similar Codes

This page was last updated on: 10/1/2023

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