Z1331 - Encounter for screening for certain single gene defects

International Classification of Diseases

Last updated: 3/24/2026

What is a ICD-10 Code?

ICD-10 (International Classification of Diseases, 10th Revision) codes are used to classify and code all diagnoses, symptoms, and procedures recorded in association with hospital care. These codes provide a standardized way to track health conditions and their treatment outcomes.

Detailed Description

This code is used when you visit a healthcare provider specifically for genetic screening to check if you carry certain single gene defects. This type of screening looks for changes in one specific gene that could affect your health or be passed on to your children. The screening is done when you don't have symptoms but want to know if you carry certain genetic variations.

Additional Information

This is a screening code for healthy individuals seeking genetic testing, not for diagnostic purposes when symptoms are present

Category

Preventive Care/Screening

Medical Specialty

Genetics, Primary Care, Obstetrics

Expected Costs

Your actual cost will depend on your insurance coverage, provider location, and specific circumstances.

What's Required Before This

  • Usually requires genetic counseling consultation
  • May require family history assessment

What to Expect After

  • Genetic counseling if positive results
  • Possible additional family screening
  • Reproductive counseling if planning pregnancy

Why Understanding This Code Matters

On Your Medical Bill

This code appears on your medical bills to identify the specific service, procedure, drug, or medical diagnosis you received. Understanding what it means helps you verify you're being charged correctly and know what to expect.

For Your Health

Knowing what this code represents helps you understand your treatment plan, ask better questions during appointments, and track your healthcare journey more effectively.

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