ICD-10 Coding for Acute Lymphocytic Leukemia(C91.00, C91.01, C91.02)
Complete ICD-10-CM coding and documentation guide for Acute Lymphocytic Leukemia. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Acute Lymphocytic Leukemia
C91.0-C91.02Primary Range
Acute lymphoblastic leukemia
This range covers the primary codes for acute lymphoblastic leukemia, including active, remission, and relapse statuses.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| C91.00 | Acute lymphoblastic leukemia not having achieved remission | Use for newly diagnosed or active ALL without remission. |
|
| C91.01 | Acute lymphoblastic leukemia, in remission | Use for ALL in complete remission. |
|
| C91.02 | Acute lymphoblastic leukemia, in relapse | Use for ALL in relapse 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 acute lymphocytic leukemia
Essential facts and insights about Acute Lymphocytic Leukemia
Primary ICD-10-CM Codes for acute lymphocytic leukemia
Decision Criteria
clinical Criteria
- Presence of ≥20% blasts in bone marrow
Applicable To
- Newly diagnosed ALL
- Active ALL
Excludes
- Chronic lymphocytic leukemia (C91.1-)
Clinical Validation Requirements
- Bone marrow blasts ≥20%
- Flow cytometry confirming B/T-cell lineage
Code-Specific Risks
- Incorrectly coding as remission when not achieved
Coding Notes
- Ensure documentation specifies the type and status of leukemia.
C91.01 - Acute lymphoblastic leukemia, in remission
Use for ALL in complete remission.
Applicable To
- ALL in complete remission
Excludes
- Chronic lymphocytic leukemia (C91.1-)
Clinical Validation Requirements
- Bone marrow blasts <5%
- No extramedullary disease
Coding Notes
Document remission status clearly with supporting lab results.
C91.02 - Acute lymphoblastic leukemia, in relapse
Use for ALL in relapse after remission.
Applicable To
- Relapsed ALL
Excludes
- Chronic lymphocytic leukemia (C91.1-)
Clinical Validation Requirements
- Bone marrow blasts ≥5%
- New extramedullary lesions
Coding Notes
Ensure documentation of relapse with supporting clinical evidence.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Encounter for immunotherapy
Z51.12Differential 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 Acute Lymphocytic Leukemia to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code C91.00.
Impact
Clinical: Leads to misclassification of leukemia status., Regulatory: May result in non-compliance with coding standards., Financial: Affects reimbursement rates.
Mitigation Strategy
Always include blast percentage in documentation.
Impact
Reimbursement: Incorrect coding can affect DRG assignment., Compliance: May lead to audit triggers., Data Quality: Impacts accuracy of patient records.
Mitigation Strategy
Ensure documentation supports remission status with lab results.
Impact
Inadequate documentation of remission status can trigger audits.
Mitigation Strategy
Ensure all remission statuses are supported by lab results.
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 Acute Lymphocytic Leukemia, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Acute Lymphocytic Leukemia
Use these documentation templates to ensure complete and accurate documentation for Acute Lymphocytic Leukemia. These templates include all required elements for proper coding and billing.
ALL in remission
Specialty: OncologyRequired Elements
- Remission status
- Bone marrow blast percentage
- Extramedullary disease status
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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