ICD-10 Coding for Chronic Leukemia(C91.10, C91.11, C91.12)
Complete ICD-10-CM coding and documentation guide for Chronic Leukemia. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Chronic Leukemia
C91.1-C91.9Primary Range
Chronic lymphocytic leukemia of B-cell type
This range covers all codes related to chronic lymphocytic leukemia, including active disease, remission, and relapse.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| C91.10 | Chronic lymphocytic leukemia of B-cell type, not having achieved remission | Use when CLL is active and not in remission. |
|
| C91.11 | Chronic lymphocytic leukemia of B-cell type, in remission | Use when CLL is in remission. |
|
| C91.12 | Chronic lymphocytic leukemia of B-cell type, in relapse | Use when CLL has relapsed after remission. |
|
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 chronic leukemia
Essential facts and insights about Chronic Leukemia
Primary ICD-10-CM Codes for chronic leukemia
Decision Criteria
clinical Criteria
- Presence of B-cell markers and lymphocytosis
Applicable To
- Active B-cell CLL
Excludes
- Acute lymphoblastic leukemia (C91.0-)
Clinical Validation Requirements
- Absolute lymphocytosis >5,000/µL
- Flow cytometry showing CD5+, CD19+, CD23+
Code-Specific Risks
- Misclassification if remission status is not documented.
Coding Notes
- Ensure documentation specifies B-cell type and current disease status.
C91.11 - Chronic lymphocytic leukemia of B-cell type, in remission
Use when CLL is in remission.
Applicable To
- B-cell CLL in remission
Excludes
- History of leukemia (Z85.71)
Clinical Validation Requirements
- Documented remission status with no active treatment
Coding Notes
Ensure remission status is clearly documented.
C91.12 - Chronic lymphocytic leukemia of B-cell type, in relapse
Use when CLL has relapsed after remission.
Applicable To
- B-cell CLL in relapse
Clinical Validation Requirements
- Evidence of disease progression after remission
Coding Notes
Relapse must be confirmed by clinical documentation.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Other autoimmune hemolytic anemias
D59.1Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Acute myeloid leukemia with 11q23-abnormality
C92.50Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Chronic Leukemia to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code C91.10.
Impact
Clinical: Misleading treatment plans., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials.
Mitigation Strategy
Regular training on documentation standards, Use of templates
Impact
Reimbursement: Incorrect coding can lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate patient records.
Mitigation Strategy
Use C91.11 for CLL in remission instead.
Impact
Inadequate documentation of remission status.
Mitigation Strategy
Implement regular audits and training.
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 Chronic Leukemia, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Chronic Leukemia
Use these documentation templates to ensure complete and accurate documentation for Chronic Leukemia. These templates include all required elements for proper coding and billing.
Active CLL with complications
Specialty: OncologyRequired Elements
- Diagnosis
- Current treatment
- Complications
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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