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Enter the one digit code which describes this primary with regard to involvement of one or both sides of paired organs (see list below).
Code | Description |
|---|---|
0 | Not a paired site |
1 | Right: origin of primary |
2 | Left: origin of primary |
3 | Only one side involved, right or left origin unspecified |
4 | Bilateral , side of involvement at time of diagnosis, lateral origin unknown for a single primary; or single primary (i.e. bilateral Wilms’ tumors)both ovaries involved simultaneously, single histology; bilateral retinoblastoma; bilateral Wilms tumors |
5Midline | originPaired site: Midline tumor (effective with 01/01/2010 dx) |
9 | Paired site, but no information concerning laterality |
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1. Use code 0 (not a paired organ) for an when:
a. The primary site is not a paired site
b. Primary site is unknown primary site (C80.9)
c. Laterality is unknown for a death certificate only (DCO) case and the primary site is NOT one o the primary site codes listed in the table below: (Sites for Which Laterality Codes Must Be Recorded)
2. Code laterality using codes 1-9 for all of the sites listed below. Note: in the table: (Sites for Which Laterality Codes Must Be Recorded)
a. Laterality may be coded for sites other than those
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required, for example, Thyroid
3. Code the side where the primary tumor originated.
a. Assign code 3 if the laterality is not known but the tumor is confined to a single side of the paired organ.
Example: Pathology report: Patient has a 2cm carcinoma in the upper pole of the kidney. Code laterality as 3 because there is documentation that the disease exists in only one kidney, but it is unknown if the disease originated in the right or left kidney.
4. Code 4 is seldom used EXCEPT for the following diseases:
i. Both ovaries involved simultaneously, single histology
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