California Cancer Reporting System Standards Volume I: Abstracting and Coding Procedures for Hospitals
For cases diagnosed January 1, 2010 and forward, or following installation of CSv2 software, dates transmitted between facility registries and central registries changed to improve the interoperability or communication of cancer registry data with other electronic record systems. Registry software may display dates in the traditional manner, or in the interoperable format. Traditional dates are displayed in MMDDCCYY form, with 99 representing unknown day or month portions, and 99999999 representing a completely unknown date. In traditional form, some dates also permit 88888888 or 00000000 for special meaning.
Interoperable dates are display in CCYYMMDD form, with the unknown portions of the date filled with blank spaces. If a date is entirely blank, an associated date flag is used to explain the missing date.
Consult your software vendor for specific data entry instructions.
Enter the date treatment was started for each modality. For instructions about entering dates, see Section I.1.6.4. If the treatment was administered in courses (as in a radiation therapy series) or included different procedures (for example, excisional biopsy and a resection), enter the date the first procedure was performed.
In Utero Diagnoses and Treatment
Beginning in 2009, the dates of diagnosis and treatment for tumors developed while in utero should reflect the dates on which they occur. In the past, these dates were assigned to the date the baby was born.
The Date of Systemic Therapy will be generated from Date of Chemotherapy, Date of Hormone, Date of Immunotherapy, and Date of Transplant/Endocrine Procedures effective with cases diagnosed 1/1/03.