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ICD-10-CM Current in FY 2027

Z17.31

Human epidermal growth factor receptor 2 positive status

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where Z17.31 sits in the official hierarchy. Each level is the code it is classified under.

  1. Z17 Estrogen, and other hormones and factors receptor status
  2. Z17.3 Parent Human epidermal growth factor 2 receptor
  3. Z17.31 This code Human epidermal growth factor receptor 2 positive status

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Inclusion Terms

HER2+

Code First

malignant neoplasm, such as:

Inherited from Z17 — Estrogen, and other hormones and factors receptor status

Code First

malignant neoplasm of breast ( C50 .-)

Inherited from Z17 — Estrogen, and other hormones and factors receptor status

Code First

malignant neoplasm of ovary ( C56 .-)

Inherited from Z17 — Estrogen, and other hormones and factors receptor status

Version History

How Z17.31 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Human epidermal growth factor receptor 2 positive status

  2. FY 2026 Effective

    Unchanged

    Human epidermal growth factor receptor 2 positive status

Related Codes

Other codes under Z17.3

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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