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ALL MEDICAL CODES IN CATEGORY Z17-Z17.1, Estrogen receptor status

2025 ICD-10-CM code Z17.0

Estrogen receptor positive status [ER+]. This code indicates a positive status for estrogen receptors.

2025 ICD-10-CM code Z17.1

Estrogen receptor negative status [ER-]. This code indicates that cancer cells do not require estrogen for growth and will continue to grow even in the absence of estrogen or when treated with estrogen blockers.