Table 4. DeepLIFT contribution score orderings for 10 most predictive ICD9 codes.

DeepLIFT scores were computed using separate test samples and models from ten k-fold cross validation experiments; scores were summed across experiments. DeepLIFT scores were produced for each pair of feature, and output (race and ethnicity) class; we list ten ICD9 codes with the highest ranges of scores—which correspond to discriminative ability. The feature-to-class contribution scores were used to construct orderings of race and ethnicity classes, for each feature. Scores were summed across all samples. Positive scores indicate favorable contribution to a class, zero scores indicate no contribution, and negative scores indicate discrimination against a class.

Rank	ICD9	Description	Ordering of race and ethnicity classes (DeepLIFT scores)
1	401.9	Hypertension NOS	H (961793) > B (723387) > W (330416) > O (102487)
2	789.00	Abdominal pain, unspecified site	H (533874) > B (374665) > W (343653) > O (-45645)
3	V72.6	Laboratory examination	W (385026) > B (-1114) > O (-23509) > H (-86539)
4	V70.0	Routine general medical examination at a health care facility	H (139118) > B (-34600) > W (-35159) > O (-259566)
5	V65.44	Human immunodeficiency virus [HIV] counseling	H (-162191) > B (-248484) > W (-355563) > O (-474608)
6	V76.12	Other screening mammogram	H (535820) > B (425450) > W (414514) > O (253839)
7	V72.9	Unspecified examination	W (313506) > H (212228) > B (193901) > O (68319)
8	V20.2	Routine infant or child health check	H (28390) > B (-68712) > W (-136391) > O (-211301)
9	724.2	Lumbago	H (252024) > B (169995) > W (97782) > O (15679)
10	V72.3	Special investigations and examinations—Gynecological examination	H (-515409) > B (-643566) > W (-665030) > O (-741763)