Collaborative Stage for TNM 7 - Revised 11/11/2010 [ Schema ]
CS Site-Specific Factor 5
Serum Chromogranin A (CgA) Lab Value
- Note 1: Chromoganins are a family of proteins in secretory granules found throughout the neuroendocrine system. Serum Chromogranin A (CgA) has been shown to be a useful marker for neuroendocrine tumors.
- Note 2: Record to the nearest nanogram/milliliter the highest CgA lab value documented in the medical record prior to treatment. For example, code a pretreatment CgA of 400 ng/ml as 400.
- Note 3: Code 000 is reserved for exactly 0.0 ng/ml (no measurable amount of CgA). Do not round tiny values down to 0 ng/ml; any measured value less than or equal to 1 ng/ml should be coded 001. For code 001, also round 1.1-1.4 ng/ml down to 1 ng/ml. For codes 002-979, round values to the nearest ng/ml.
- Note 4: For an uncertain value, record the stated closest value. For example, code a value stated as "less than 5 ng/ml" as 005.
|001||1 or less ng/ml|
|980||980 or greater ng/ml|
|988||Not applicable: Information not collected for this case|
(May include cases converted from code 888 used in CSv1 for "Not applicable" or when the item was not collected. If this item is required to derive T, N, M, or any stage, use of code 988 may result in an error.)
|997||Test ordered, results not in chart|
|998||Test not done (test not ordered and not performed)|
|999||Unknown or no information|
Not documented in patient record