Is Z17.1 a billable ICD-10 code?

Yes. Z17.1 (Estrogen receptor negative status [ER-]) is billable and can be used for insurance claims. Always verify payer-specific requirements.

Z17.1 ✓ Billable

Estrogen receptor negative status [ER-]

Q: What is ICD-10 code Z17.1?

ICD-10-CM code Z17.1 stands for "Estrogen receptor negative status [ER-]". It is a billable code in the Factors Influencing Health Status chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Factors Influencing Health Status

Code

Z17.1

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Factors Influencing Health Status

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code Z17.1?

ICD-10-CM code Z17.1 represents Estrogen receptor negative status [ER-]. It is a billable diagnosis code in the Factors Influencing Health Status chapter, effective October 1, 2025 – September 30, 2026.

Is Z17.1 billable?

Yes. Z17.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is Z17.1 in?

Z17.1 belongs to the Factors Influencing Health Status chapter (Z00–Z99) of ICD-10-CM.

Related codes in the Z17 category

Z17 Estrogen, and other hormones and factors receptor status Non-billable Z17.0 Estrogen receptor positive status [ER+] Billable Z17.2 Progesterone receptor status Non-billable Z17.3 Human epidermal growth factor 2 receptor Non-billable Z17.4 Combined receptor status Non-billable Z17.21 Progesterone receptor positive status Billable Z17.22 Progesterone receptor negative status Billable Z17.31 Human epidermal growth factor receptor 2 positive status Billable

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