ICD-10 Coding for Parathyroid Hormone Disorders(E21.0, N25.81)
Complete ICD-10-CM coding and documentation guide for Parathyroid Hormone Disorders. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Parathyroid Hormone Disorders
E21.0-E21.3Primary Range
Hyperparathyroidism and other disorders of parathyroid gland
This range includes primary, secondary, and tertiary hyperparathyroidism, which are the main conditions associated with abnormal parathyroid hormone levels.
Secondary hyperparathyroidism of renal origin
This code is used for secondary hyperparathyroidism specifically due to chronic kidney disease.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| E21.0 | Primary hyperparathyroidism | Use when both hypercalcemia and elevated PTH are present, confirmed by imaging. |
|
| N25.81 | Secondary hyperparathyroidism of renal origin | Use when hyperparathyroidism is due to chronic kidney disease. |
|
Clinical Decision Support
Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.
Key Information: ICD-10 code for primary hyperparathyroidism
Essential facts and insights about Parathyroid Hormone Disorders
Primary ICD-10-CM Codes for parathyroid hormone
Decision Criteria
clinical Criteria
- Elevated calcium and PTH levels with imaging confirmation
Applicable To
- Hyperparathyroidism due to parathyroid adenoma
Clinical Validation Requirements
- Serum calcium >10.5 mg/dL
- PTH >65 pg/mL
- Sestamibi scan confirming adenoma
Code-Specific Risks
- Misclassification with secondary hyperparathyroidism
Coding Notes
- Ensure documentation includes specific lab values and imaging results.
N25.81 - Secondary hyperparathyroidism of renal origin
Use when hyperparathyroidism is due to chronic kidney disease.
Applicable To
- Hyperparathyroidism due to chronic kidney disease
Excludes
- Primary hyperparathyroidism (E21.0)
Clinical Validation Requirements
- eGFR <60 mL/min
- PTH >300 pg/mL
Coding Notes
Document CKD stage and PTH levels.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Parathyroid Hormone Disorders to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code E21.0.
Impact
Clinical: May lead to misdiagnosis., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims.
Mitigation Strategy
Use specific lab values and imaging findings, Follow coding guidelines
Impact
Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data reporting.
Mitigation Strategy
Use E21.2 for tertiary hyperparathyroidism.
Impact
Risk of using incorrect codes for hyperparathyroidism types.
Mitigation Strategy
Regular training on coding updates and guidelines.
Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.
Frequently Asked Questions
Common questions about ICD-10 coding for Parathyroid Hormone Disorders, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Parathyroid Hormone Disorders
Use these documentation templates to ensure complete and accurate documentation for Parathyroid Hormone Disorders. These templates include all required elements for proper coding and billing.
Evaluation of hyperparathyroidism
Specialty: EndocrinologyRequired Elements
- Patient history
- Lab results
- Imaging findings
- Diagnosis
- Treatment plan
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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