Pathology/Lab Coding Alert

Expect direct crosswalk with new code set.

Only the numbers and letters will change for reporting estrogen receptor (ER) status when you change from ICD-9 to ICD-10 on Oct. 1 of this year.

Positive or negative: Both code sets allow you to directly report whether the patient is ER positive or ER negative using the following codes:

ICD-9:

• V86.0 — Estrogen receptor positive status (ER+)
  
• V86.1 — Estrogen receptor negative status (ER-)
  

ICD-10:

• Z17.0 — Estrogen receptor positive status (ER+)
• Z17.1 — Estrogen receptor negative status (ER-)