E89.2
BillablePostprocedural hypoparathyroidism
HCC Category Mapping
V24HCC 23 — Other Significant Endocrine and Metabolic Disorders
0.230ESRDHCC 23 — Other Significant Endocrine and Metabolic Disorders
0.000RxHCCHCC 43 — Other Significant Endocrine and Metabolic Disorders
0.000What This Code Means
Low parathyroid hormone levels that develop after surgery, usually following thyroid or parathyroid procedures.
Coding Tips
- •Confirm the procedure that damaged or removed parathyroid tissue
- •Document calcium and phosphate levels if available to support the diagnosis
Clinical Significance
Postprocedural hypoparathyroidism is the most common cause of permanent hypoparathyroidism, typically following thyroidectomy or parathyroidectomy when the parathyroid glands are inadvertently damaged or removed. It causes chronic hypocalcemia requiring lifelong calcium and vitamin D supplementation, with risk of tetany, seizures, and cardiac arrhythmias.
Documentation Requirements
- ✓Diagnosis of hypoparathyroidism attributed to a prior surgical procedure
- ✓Type of procedure causing the condition (thyroidectomy, parathyroidectomy, neck dissection)
- ✓Serum calcium and PTH levels documenting hypoparathyroidism
- ✓Current supplementation regimen (calcium, calcitriol/active vitamin D)
- ✓Monitoring schedule and any hypocalcemia-related complications
- ✓Original indication for the surgery
Commonly Confused Codes
E20.0 — Idiopathic hypoparathyroidism: non-surgical causeE20.1 — Pseudohypoparathyroidism: PTH resistance, not deficiencyE20.9 — Hypoparathyroidism, unspecified: use only when cause is unknown; E89.2 is required post-procedureE89.0 — Postprocedural hypothyroidism: different endocrine gland (thyroid vs. parathyroid)
Code Hierarchy
└E89Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified└E89.2Postprocedural hypoparathyroidism
└E89.2Postprocedural hypoparathyroidism