Exercise #5
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What is the date of diagnosis?
The diagnosis date for the subependymoma is 01/03/2004, the date of the MRI. The date of diagnosis for the meningioma is 12/15/2004, the date of the MRI.
What is the sequence number?
The sequence number for the subependymoma is 61 because it is the first of more than 1 benign tumor. The sequence number for the meningioma is 62 because it is the 2nd of more than 1 benign tumor.
What is the CS extension?
The CS extension code is 05 for both tumors because they are benign.
Primary site:
1st tumor: C71.7 medulla oblongata
2nd tumor: C70.1 spinal meninges
The 2nd primary is sited to the spinal meninges because it is stated to be intradural in the lumbar spine.
Histology:
1st tumor: 9383/19 subependymoma
2nd tumor: 9530/09 meningioma NOS.
