E21.5
✓ BillableDisorder of parathyroid gland, unspecified
Endocrine, nutritional and metabolic diseases (E00-E89)
❌ Excludes1
inherited from E21Rules from parent category E21: Hyperparathyroidism and other disorders of parathyroid gland
- • adult osteomalacia (M83.-)
- • ectopic hyperparathyroidism (E34.2)
- • hungry bone syndrome (E83.81)
- • infantile and juvenile osteomalacia (E55.0)
⚠️ Excludes2
inherited from E21Rules from parent category E21: Hyperparathyroidism and other disorders of parathyroid gland
- • familial hypocalciuric hypercalcemia (E83.52)
🧪 Validate Combinations
Add E21.5 to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
CodeE21.5
BillableYes
ParentE21
CategoryEndocrine, nutritional and metabolic diseases (E00-E89)
Excludes14 rule(s)
Excludes21 note(s)
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)