E21.1 SECONDARY HYPERPARATHYROIDISM, NOT ELSEWHERE CLASSIFIED

Code Information

  • Diagnosis Code: E21.1
  • Short Description: Secondary hyperparathyroidism, not elsewhere classified
  • Long Description: Secondary hyperparathyroidism, not elsewhere classified
  • Code Version: 2025 ICD-10-CM

The code E21.1 is VALID for claim submission

Code Classification

Synonyms

  • Hyperparathyroidism due to intestinal malabsorption
  • 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 V42.0

  1. Endocrine Disorders With Mcc (643)
  2. Endocrine Disorders With Cc (644)
  3. 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

ICD-10 Code ICD-9 Code ICD-9 Description
E21.1 Right Arrow 252.02 Sec hyprprthyrd nonrenal
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
E21 Hyperparathyroidism and other disorders of parathyroid gland
E21.0 Primary hyperparathyroidism
E21.2 Other hyperparathyroidism
E21.3 Hyperparathyroidism, unspecified
E21.4 Other specified disorders of parathyroid gland
E21.5 Disorder of parathyroid gland, unspecified
This page was last updated on: 10/1/2024
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