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Q99.8 Non-Billable Code

Other specified chromosome abnormalities

Effective From: 10/01/2016
Effective To: 09/30/2025
⚠️

This Code Has Been Retired

Code Q99.8 is no longer valid for claims submission as of 09/30/2025.

Chapter Classification

Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)

Section Detail

Q90-Q99 Chromosomal abnormalities, not elsewhere classified (Q90-Q99)

Code Hierarchy

This code is a child of Q99.

As a non-billable code, it requires more specific digits to be used on a medical claim.

More Specific Diagnosis Codes

This code is not billable as it requires a higher level of specificity. Select a more specific code below.

  • Q99.81 - Usher syndrome
  • Q99.89 - Other specified chromosome abnormalities Billable

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