California Cancer Reporting System Standards Volume I: Abstracting and Coding Procedures for Hospitals
The Secondary Diagnosis fields 1 through 10 are new in 2013. Due to the implementation of ICD-10-CM, a field was needed to carry the new ICD-10-CM codes, which can be up to 7 characters in length and have a different structure. These fields are designed to capture the patients preexisting or secondary diagnosis, factors influencing health status, and/or complications during the hospital stay for the treatment of cancer. These factors may affect treatment decisions and influence outcomes.
Although data collection for these fields is required by the CCR if available, Secondary Diagnosis fields 1 - 10 will be collected from CoC facilities.
Use the following as guidelines when coding this field. For specific instructions and information, refer to Section One of the FORDS Manual Revised for 2013.
Use the Secondary Diagnosis 1 – 10 fields when your facility begins using ICD-10-CM.
Enter only ICD-10-CM codes into these fields.
These fields are left justified. DO NOT add additional characters, such as 0’s if the ICD-10-CM code is less than 7 characters.
If ICD-9-CM was initially used in the patient record for a case, then the ICD-10-CM was subsequently used, code the relevant ICD-9-CM codes in Comorbidities and Complications and the relevant ICD-10-CM codes in Secondary Diagnoses. Do not attempt to convert between versions.
Do not use the Comorbidities and Complications 1-10 fields for any ICD-10-CM entries for cases diagnosed on or after January 1, 2013.
If multiple ICD-10-CM codes are available to enter into these fields, use the Secondary Diagnosis fields in order beginning with Secondary Diagnosis 1 and use the other nine (9) fields in order, using as many as needed.
If you have secondary diagnosis that is stated in the medical record but is not coded, do not attempt to code the condition.
EXAMPLE: If diabetes is mentioned in the medical record and it is not coded in the medical record do not attempt to code the condition in ICD-10-CM or fill in these fields.