Collaborative Stage

Note 1: Stage for gestational trophoblastic tumors is anatomically defined, but the Prognostic Scoring Index is used to substage patients. Substage A (low risk) and Substage B (high risk) are assigned on the basis of a non-anatomic risk factor scoring system:
        Age:
            Score 0: Age less than 40
            Score 1: Age equal to or greater than 40
         Antecedent Pregnancy:
            Score 0: Hydatidiform mole
            Score 1: Abortion
            Score 2: Term pregnancy
        Interval Months from Index Pregnancy:
             Score 0: Less than 4 months
            Score 1: 4-6 months
            Score 2: 7-12 months
            Score 4: More than 12 months
        Pretreatment Serum human chorionic gonadotropin (hCG) (IU/ml):
            Score 0: Less than 10 to 3rd power (1,000)
            Score 1: 10 to 3rd power to less than 10 to 4th power (1,000 to less than 10,000)
            Score 2: 10 to 4th power to less than 10 to 5th power (10,000 to less than 100,000)
            Score 4: Equal to or greater than 10 to 5th power (100,000 or greater)
        Largest Tumor Size, Including Uterus:
        Score 0: Less than 3 cm
        Score 1: 3 cm to 5 cm';
        Score 2: Equal to or greater than 5 cm
    Sites of Metastases:
            Score 0: Lung only or none
            Score 1: Spleen, kidney
        Score 2: Gastrointestinal tract
        Score 4: Liver, brain
    Number of Metastases Identified:
            Score 0: 0
            Score 1: 1-4
            Score 2: 5-8
            Score 4: Greater than 8
        Previous Failed Chemotherapy:
            Score 2: Single drug
            Score 4: 2 or more drugs
Note 2: Clinician scoring is recommended, but the score may be assigned if clinician scoring is unavailable.
Note 3: Sum the score of the prognostic risk factors to determine the final Prognostic Scoring Index. If any one of the factors is unknown, do not assign score, unless low risk or high risk can be determined with the information available.

Code	Description
000	Clinician stated no risk factors
001	OBSOLETE DATA RETAINED V0200 Clinician stated low risk (sum score of 7 or less) Stated to be substage A, but score not specified
002	OBSOLETE DATA RETAINED V0200 Clinician stated high risk (sum score of 8 or greater or NOS) Stated to be substage B, but score not specified
010	Clinician stated low risk (Prognostic score of 6 or less)
050	Stated to be substage A, but score not specified
110	Clinician stated high risk (Prognostic score of 7 or greater or NOS)
150	Stated to be substage B, but score not specified
200	Clinician stated risk factors present, but unknown whether low or high risk
988	Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code 988 will result in an edit error.)
999	Unknown or no information Not documented in patient record

Placenta

CS Site-Specific Factor 1
Prognostic Scoring Index

Placenta

CS Site-Specific Factor 1Prognostic Scoring Index

CS Site-Specific Factor 1
Prognostic Scoring Index