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SEER Inquiry System - Report
Produced: 10/15/2025 2:01 AM
Question 20021132
Inquiry Details
References:
SEER EOD-88,3rd Ed, 1
Question:
EOD-Extension: The medical record lacks a clear statement that metastatic workup was complete. A metastatic deposit is identified within 4 months of diagnosis and while the patient is undergoing first course of treatment. How do you code the EOD-Extension field?
Discussion:
Answer:
For cases diagnosed 1998-2003:
In coding the EOD-Extension field, ignore metastasis that is discovered after the initial workup is completed regardless of the timeframe from diagnosis date until the date the metastatic deposit was discovered. The metastasis is progression of disease.
Any of the following represents progression of disease. Do not code the subsequently identified metastatic involvement in the EOD:
1) The metastatic workup was complete and treatment started before the procedure was done that found the metastatic involvement.
2) A procedure, such as a scan, was negative initially and a repeat of that procedure is now positive.
3) The treatment plan is developed for a localized disease process.
If you are unable to determine whether the newly discovered metastasis represents progression or is part of the initial workup, regard the metastasis as progression. Do not code the metastasis in the EOD-Extension field.
