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National Cancer Data Base - Data Dictionary PUF 2016

Patient Age

PUF Data Item Name: 
NAACCR Item #: 
Allowable values: 
000 - 090, 999
Right Justified, Zero-filled
Records the age of the patient at his or her last birthday before diagnosis.
Registry Coding Instructions: 

If the patient has multiple primaries, then the age at diagnosis may be different for subsequent primaries.

Analytic Note: 

In utero Date of Initial Diagnosis (NAACCR Item #390) was coded as equal to the Date of Birth (NAACCR Item #240) in the past. Beginning in 2009, assignment is to the pre-birth date on which the diagnosis occurs. Age at Diagnosis is assigned 000 for these cases.

For compliance with HIPAA privacy requirements, all patients age 90 or over at diagnosis are shown as 090.

Code Definition
000 Less than one year old, or diagnosed in utero
001-089 One to eighty nine years old
090 Ninety or older
999 Age at diagnosis unknown