What is the ICD-10 code for congenital breast asymmetry?

The ICD-10 code for congenital breast asymmetry is Q83.9, used when the asymmetry is present from birth without surgical history.

How do you code breast asymmetry after reconstruction?

Breast asymmetry after reconstruction is coded as N65.1, indicating disproportion of the reconstructed breast.

ICD-10 Coding for Breast Asymmetry(Q83.9, N64.89, N65.1)

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Explore ICD-10 coding for breast asymmetry, including congenital and post-reconstruction scenarios. Learn about documentation requirements and common pitfalls.

Also known as:

Uneven BreastsBreast Disproportion

Related ICD-10 Code Ranges

Complete code families applicable to Breast Asymmetry

Q00-Q99Primary Range

Congenital malformations, deformations and chromosomal abnormalities

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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
Q83.9	Congenital malformation of breast, unspecified	Use for congenital asymmetry without surgical history.	Documented history of asymmetry since birth or puberty No history of breast surgery
N65.1	Disproportion of reconstructed breast	Use for asymmetry in reconstructed breasts post-surgery.	Documented history of breast reconstruction Imaging showing asymmetry between native and reconstructed breast
N64.89	Other specified disorders of breast	Use for acquired or idiopathic asymmetry.	No congenital or surgical history Imaging confirming asymmetry

Primary ICD-10-CM Codes

Congenital malformation of breast, unspecified

Q83.9Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Poland syndromeQ79.8

Documentation & Coding Risks

Avoid these common issues when documenting Breast Asymmetry.

Unspecified laterality

Impact

Clinical: Impacts treatment planning, Regulatory: Non-compliance with documentation standards, Financial: Potential claim denials

Mitigation

Always document the affected side, Use terms like 'left' or 'right'

Using N65.1 for non-reconstructed cases

Impact

Reimbursement: Incorrect DRG assignment, Compliance: Potential audit trigger, Data Quality: Inaccurate clinical data

Mitigation

Use N64.89 for idiopathic or acquired asymmetry.

Incorrect code usage

Impact

Using codes without proper documentation

Mitigation

Ensure thorough documentation of clinical scenarios

Frequently Asked Questions

Primary Code

Q83.9

Congenital malformation of breast, unspecified

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ICD-10 codes5

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