ICD-10 Coding for Cutaneous T-Cell Lymphoma(C84.A0, C84.A4, C86.6)
Complete ICD-10-CM coding and documentation guide for Cutaneous T-Cell Lymphoma. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Cutaneous T-Cell Lymphoma
C84.A0-C84.A9Primary Range
Cutaneous T-cell lymphoma codes
This range includes codes specific to cutaneous T-cell lymphoma, covering various sites and subtypes.
Primary cutaneous CD30+ T-cell lymphoma
This code is used for specific subtypes of cutaneous T-cell lymphoma, such as CD30+ anaplastic large cell lymphoma.
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| C84.A0 | Unspecified cutaneous T-cell lymphoma | Use when the specific site of cutaneous T-cell lymphoma is not documented. |
|
| C84.A4 | Cutaneous T-cell lymphoma of axilla and upper limb lymph nodes | Use when CTCL involves axillary or upper limb lymph nodes. |
|
| C86.6 | Primary cutaneous CD30+ T-cell lymphoma | Use for CD30+ primary cutaneous lymphomas confirmed by biopsy. |
|
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 cutaneous T-cell lymphoma
Essential facts and insights about Cutaneous T-Cell Lymphoma
Primary ICD-10-CM Codes for cutaneous type cell lymphoma
Decision Criteria
clinical Criteria
- Biopsy confirms cutaneous T-cell lymphoma without specific site.
Applicable To
- Cutaneous T-cell lymphoma NOS
Clinical Validation Requirements
- Biopsy confirming T-cell lymphoma
- Exclusion of systemic involvement
Code-Specific Risks
- Risk of under-coding if specific site is known but not documented.
Coding Notes
- Ensure documentation specifies the absence of systemic involvement.
C84.A4 - Cutaneous T-cell lymphoma of axilla and upper limb lymph nodes
Use when CTCL involves axillary or upper limb lymph nodes.
Applicable To
- CTCL with axillary lymph node involvement
Excludes
- Peripheral T-cell lymphoma (C84.4-)
- Primary cutaneous CD30+ T-cell lymphoma (C86.6)
Clinical Validation Requirements
- Biopsy confirming T-cell lymphoma in axillary nodes
- Imaging showing lymph node involvement
Coding Notes
Ensure lymph node involvement is clearly documented.
C86.6 - Primary cutaneous CD30+ T-cell lymphoma
Use for CD30+ primary cutaneous lymphomas confirmed by biopsy.
Applicable To
- CD30+ anaplastic large cell lymphoma
Excludes
- Peripheral T-cell lymphoma (C84.4-)
Clinical Validation Requirements
- Immunohistochemistry showing CD30 positivity
- Exclusion of systemic anaplastic large cell lymphoma
Coding Notes
CD30 positivity must be documented.
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 Cutaneous T-Cell Lymphoma to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code C84.A0.
Impact
Clinical: May lead to incorrect treatment plans., Regulatory: Increases risk of coding audits., Financial: Potential underpayment due to incorrect coding.
Mitigation Strategy
Ensure biopsy reports include CD30 status., Train staff on documentation requirements.
Impact
Reimbursement: May lead to lower reimbursement rates., Compliance: Increases risk of audit due to lack of specificity., Data Quality: Reduces accuracy of clinical data.
Mitigation Strategy
Document and code the specific site of lymphoma involvement.
Impact
Audits may target unspecified site codes when specific sites are documented.
Mitigation Strategy
Ensure all documentation specifies the site of lymphoma involvement.
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 Cutaneous T-Cell Lymphoma, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Cutaneous T-Cell Lymphoma
Use these documentation templates to ensure complete and accurate documentation for Cutaneous T-Cell Lymphoma. These templates include all required elements for proper coding and billing.
CTCL with lymph node involvement
Specialty: OncologyRequired Elements
- Biopsy results
- Lymph node imaging
- CD30 status
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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