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ICD-10 Coding for Smoldering Multiple Myeloma(C90.00)

Complete ICD-10-CM coding and documentation guide for Smoldering Multiple Myeloma. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Asymptomatic Multiple MyelomaIndolent Multiple Myeloma

Related ICD-10 Code Ranges

Complete code families applicable to Smoldering Multiple Myeloma

C90.0-C90.02Primary Range

Multiple myeloma and malignant plasma cell neoplasms

This range includes codes for multiple myeloma, with C90.00 specifically for smoldering multiple myeloma.

Key Information: ICD-10 code for smoldering multiple myeloma

Essential facts and insights about Smoldering Multiple Myeloma

The ICD-10 code for smoldering multiple myeloma is C90.00, applicable when there are no CRAB symptoms.

Primary ICD-10-CM Code for smoldering multiple myeloma

Multiple myeloma not having achieved remission
Billable Code

Decision Criteria

clinical Criteria

  • Patient has serum M-protein ≥3 g/dL and 10-60% clonal plasma cells without CRAB symptoms.

documentation Criteria

  • Absence of CRAB symptoms must be documented explicitly.

Applicable To

  • Smoldering multiple myeloma

Excludes

  • Multiple myeloma in remission (C90.01)
  • Multiple myeloma with CRAB symptoms (C90.02)

Clinical Validation Requirements

  • Serum M-protein ≥3 g/dL
  • 10-60% clonal plasma cells in bone marrow
  • Absence of CRAB symptoms

Code-Specific Risks

  • Misclassification as active multiple myeloma if CRAB symptoms are present.

Coding Notes

  • Ensure documentation specifies the absence of CRAB symptoms and includes lab results.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Personal history of multiple myeloma

Z85.820
Use for patients with a history of SMM after treatment.

Elevated M-protein without SMM criteria

R76.0
Use when M-protein is elevated but does not meet SMM criteria.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Multiple myeloma with CRAB symptoms

C90.02
Presence of CRAB symptoms such as hypercalcemia, renal failure, anemia, or bone lesions.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Smoldering Multiple Myeloma to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code C90.00.

Impact

Clinical: Misdiagnosis risk due to lack of specificity., Regulatory: Potential audit failure due to incomplete documentation., Financial: Denial of claims due to insufficient documentation.

Mitigation Strategy

Use structured templates for documentation., Ensure all lab and imaging results are included.

Impact

Reimbursement: Incorrect DRG assignment leading to potential overpayment., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data affecting patient records.

Mitigation Strategy

Verify absence of CRAB symptoms before coding as SMM.

Impact

Coding SMM as active MM without CRAB symptoms leads to audit risks.

Mitigation Strategy

Implement thorough documentation checks for CRAB symptoms.

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 Smoldering Multiple Myeloma, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Smoldering Multiple Myeloma

Use these documentation templates to ensure complete and accurate documentation for Smoldering Multiple Myeloma. These templates include all required elements for proper coding and billing.

Initial Diagnosis of SMM

Specialty: Hematology

Required Elements

  • Serum M-protein level
  • Bone marrow plasma cell percentage
  • Absence of CRAB symptoms

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has smoldering myeloma.
Good Documentation Example
Patient diagnosed with smoldering multiple myeloma. Serum IgG κ M-protein 3.2 g/dL. Bone marrow biopsy shows 15% clonal plasma cells. No evidence of hypercalcemia, renal insufficiency, anemia, or lytic bone lesions on skeletal survey.
Explanation
The good example provides specific lab values and confirms the absence of CRAB symptoms, supporting the SMM diagnosis.

Need help with ICD-10 coding for Smoldering Multiple Myeloma? Ask your questions below.

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