What is the ICD-10 code for an unspecified brain mass?

The ICD-10 code for an unspecified brain mass with uncertain behavior is D43.2. Use this code when imaging shows a mass but histology is pending or inconclusive.

When should R90.82 be used instead of D43.2?

Use R90.82 for imaging abnormalities not suspected to be neoplastic. D43.2 is for masses with uncertain behavior pending histology.

ICD-10 Coding for Brain Mass Unspecified(D43.2, C71.9, C79.31)

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Learn about ICD-10 coding for unspecified brain masses, including when to use D43.2 and R90.82, documentation requirements, and common coding pitfalls.

Also known as:

Unspecified Brain TumorBrain Lesion Unspecified

Related ICD-10 Code Ranges

Complete code families applicable to Brain Mass Unspecified

C00-D49Primary Range

Neoplasms

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
D43.2	Neoplasm of uncertain behavior of brain, unspecified	Use when imaging shows a brain mass but histology is pending or inconclusive.	Imaging findings suggestive of a mass without definitive histological diagnosis Pending biopsy results
R90.82	Unspecified abnormal finding on diagnostic imaging of brain	Use when imaging shows an abnormality not suspected to be a neoplasm.	Imaging findings without suspicion of neoplasm

Primary ICD-10-CM Codes

Neoplasm of uncertain behavior of brain, unspecified

D43.2Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Benign neoplasm of brain, supratentorialD33.0

Use if histology confirms benign nature.

Malignant neoplasm of brain, unspecifiedC71.9

Use if histology confirms malignancy.

Neoplasm of uncertain behavior of brain, unspecifiedD43.2

Use if there is suspicion of neoplasm.

Documentation & Coding Risks

Avoid these common issues when documenting Brain Mass Unspecified.

Omitting mass characteristics in documentation

Impact

Clinical: May lead to inappropriate treatment decisions., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims or reduced reimbursement.

Mitigation

Use structured templates for documentation., Ensure radiology reports are included in the medical record.

Using R90.82 for suspected neoplasms

Impact

Reimbursement: May lead to incorrect DRG assignment and reimbursement issues., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate representation of patient condition.

Mitigation

Use D43.2 when neoplasm is suspected but not confirmed.

Use of unspecified codes

Impact

Frequent use of unspecified codes without supporting documentation.

Mitigation

Ensure all documentation includes specific details about the mass and diagnostic plans.

Frequently Asked Questions

Primary Code

D43.2

Neoplasm of uncertain behavior of brain, unspecified

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