ICD-10 Coding for Parathyroidectomy(E21.0, E21.1, D35.1, E89.2)
Complete ICD-10-CM coding and documentation guide for Parathyroidectomy. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Parathyroidectomy
E21.0-E21.5Primary Range
Disorders of parathyroid gland
This range includes codes for hyperparathyroidism and related disorders, which are primary indications for parathyroidectomy.
Benign neoplasm of parathyroid gland
Used when a benign tumor is the reason for parathyroidectomy.
Postprocedural hypoparathyroidism
Used for documenting hypoparathyroidism following parathyroidectomy.
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 primary hyperparathyroidism is confirmed by lab and imaging findings. |
|
| E21.1 | Secondary hyperparathyroidism | Use when hyperparathyroidism is secondary to another condition like CKD. |
|
| D35.1 | Benign neoplasm of parathyroid gland | Use when a benign tumor is the reason for surgery. |
|
| E89.2 | Postprocedural hypoparathyroidism | Use when hypocalcemia is documented post-parathyroidectomy. |
|
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 parathyroidectomy
Essential facts and insights about Parathyroidectomy
Primary ICD-10-CM Codes for parathyroidectomy
Decision Criteria
clinical Criteria
- Elevated calcium and PTH levels with imaging confirmation.
Applicable To
- Single adenoma with elevated calcium/PTH
Excludes
- Secondary hyperparathyroidism (E21.1)
Clinical Validation Requirements
- Serum calcium >10.5 mg/dL
- PTH >65 pg/mL
- Localizing imaging (sestamibi/US)
Code-Specific Risks
- Misclassification if secondary causes are not ruled out.
Coding Notes
- Ensure lab and imaging findings support the diagnosis.
E21.1 - Secondary hyperparathyroidism
Use when hyperparathyroidism is secondary to another condition like CKD.
Applicable To
- Chronic kidney disease-associated cases
Excludes
- Primary hyperparathyroidism (E21.0)
Clinical Validation Requirements
- eGFR <60
- PTH >300 pg/mL
- Bone density T-score <-2.5
Coding Notes
Document underlying condition causing secondary hyperparathyroidism.
D35.1 - Benign neoplasm of parathyroid gland
Use when a benign tumor is the reason for surgery.
Applicable To
- Parathyroid adenoma
Clinical Validation Requirements
- Pathology report confirming benign neoplasm
Coding Notes
Ensure pathology confirmation of benign status.
E89.2 - Postprocedural hypoparathyroidism
Use when hypocalcemia is documented post-parathyroidectomy.
Applicable To
- Hypocalcemia following parathyroidectomy
Clinical Validation Requirements
- Post-op calcium levels below normal range
Coding Notes
Document calcium levels post-surgery.
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 Parathyroidectomy 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 incorrect diagnosis coding., Regulatory: Non-compliance with documentation standards., Financial: Potential for claim denials or reduced reimbursement.
Mitigation Strategy
Use detailed templates for operative notes., Ensure all findings and measurements are recorded.
Impact
Reimbursement: Incorrect billing can lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate data on surgical procedures.
Mitigation Strategy
Use 60500 once regardless of the number of glands removed.
Impact
Reimbursement: May result in claim denials if not supported., Compliance: Non-compliance with ICD-10 coding rules., Data Quality: Misleading data on post-surgical complications.
Mitigation Strategy
Ensure post-op calcium levels are documented if using E89.2.
Impact
Risk of incorrect procedure code usage leading to audits.
Mitigation Strategy
Regular training on CPT updates and documentation requirements.
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 Parathyroidectomy, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Parathyroidectomy
Use these documentation templates to ensure complete and accurate documentation for Parathyroidectomy. These templates include all required elements for proper coding and billing.
Focused parathyroidectomy
Specialty: Endocrine SurgeryRequired Elements
- Pre-op diagnosis
- Procedure details
- Intraoperative findings
- IOPTH results
- Specimen details
- Post-op diagnosis
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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