Appendix B:

ICD-9 Codes Removed from the Final Dataset (n = 198)

Item	ICD-9 Description	ICD-9 Code	Weighted Frequency	Decision Round	Reason Excluded	IoH
9	Other postsurgical status	V4589	278112	EC	Too.Vague	54
11	Other specified diseases due to Chlam…	7888	12888	EC	Too.Vague	48
16	Unspecified nutritional deficiency	2699	2557	EC	Too.Vague	42
29	Malignant neoplasm of other and unspe…	1759	7519	EC	Too.Vague	75
30	Special screening for unspecified mal…	V769	54227	EC	Too.Vague	46
35	Other postoperative infection	99859	45457	EC	Too.Vague	65
41	Family history of other specified mal…	V168	37630	EC	Too.Vague	25
49	Special screening for other and unspe…	V781	27114	EC	Too.Vague	30
56	Fertility testing	V2621	4372	EC	Too.Vague	37
63	Candidiasis of other urogenital sites	1122	18558	EC	Too.Vague	36
69	Family hx of malignant neoplasm …	V160	1522	EC	Too.Vague	36
87	Other specified noninflammatory disor…	6238	84448	EC	Too.Vague	26
96	Anaphylactic shock due to tree nuts a…	99564	12776	EC	No.Consensus	89
99	Body Mass Index 26.0 to 26.9, adult	V8522	35144	EC	No.Consensus	27
102	Other specified disorders involving t…	2798	4593	EC	No.Consensus	34
110	Nocturia	78843	129444	EC	No.Consensus	33
114	Malignant neoplasm other w/o specific…	1991	115965	EC	Too.Vague	82
119	Acute gonococcal infection of lower g…	980	80421	EC	Too.Vague	53
121	Family hx of malignant neoplasm …	V163	9508	EC	Too.Vague	38
149	Herpes simplex without mention of com…	549	266826	EC	Too.Vague	42
152	Inj to mult and unsp intrathor orgn w…	8628	16224	EC	Too.Vague	68
154	Noncodable diagnosis/insuff info for …	V990	1461460	EC	Too.Vague	5
156	Abdominal or pelvic swelling, mass, o…	78932	7643	EC	Too.Vague	53
177	Malig neoplasm of connectiv/oth soft …	1719	9122	EC	Too.Vague	78
182	Other stomatitis and mucositis (ulcerative)	52809	6228	EC	No.Consensus	42
191	Swelling, mass, or lump in head and neck	7842	120116	EC	Too.Vague	44
196	Sterilization	V252	24057	EC	Too.Vague	43
199	Gout, unspecified	2749	907988	EC	No.Consensus	49
203	Hemophilus influenza, type B [Hib]	V0381	5656	EC	No.Consensus	59
219	Other specified counseling	V6549	473364	EC	Too.Vague	34
222	Stomatitis and mucositis, unspecified	52800	5306	EC	No.Consensus	32
227	Personal history of malignant neoplas…	V1046	97016	EC	Too.Vague	51
236	Open wound of tooth (broken)	87363	55288	EC	No.Consensus	41
253	Other adverse food reactions, NEC	9957	24095	EC	Too.Vague	34
269	Chronic pain syndrome	3384	1494376	EC	No.Consensus	62
277	Other specified chlamydial infection	7988	15464	EC	Too.Vague	54
279	Deficiency of other vitamins	2691	13439	EC	Too.Vague	42
319	Other B-complex deficiencies	2662	193679	EC	Too.Vague	41
326	Hemorrhage, unspecified	4590	52398	EC	Too.Vague	65
327	Giant cell arteritis	4465	6737	EC	No.Consensus	70
331	Chronic pain due to trauma	33821	17311	EC	Too.Vague	53
336	Diagnostic skin and sensitization tests	V727	17594	EC	Too.Vague	30
346	Contusion of unspecified part of uppe…	9239	45638	EC	No.Consensus	20
366	Other injury of other sites of trunk	95919	118538	EC	Too.Vague	38
369	Swelling, mass, or lump in chest	7866	85370	EC	Too.Vague	45
381	Malignant neoplasm of lower limb, inc…	1713	28430	EC	Too.Vague	72
383	Unspecified vitamin deficiency	2692	16399	EC	Too.Vague	41
387	Special screening examination for oth…	V7389	58267	EC	Too.Vague	36
396	Open wound of knee, leg [except thigh…	8911	27114	EC	Too.Vague	43
399	Benign neoplasm of site unspecified	2299	10426	EC	Too.Vague	12
401	Examination for medicolegal reasons	V704	19826	EC	No.Consensus	29
409	Inflammatory conditions	5264	14370	EC	Too.Vague	40
413	Contact with or exposure to venereal …	V016	47074	EC	Too.Vague	52
417	Counseling NOS	V6540	75836	EC	Too.Vague	40
426	Hypercalcemia	27542	49616	EC	No.Consensus	60
427	Adult sexual abuse	99583	16822	EC	No.Consensus	65
430	Morbid obesity	27801	770970	EC	No.Consensus	63
454	Personal history of oth allergy, oth than med agents	V1509	28430	EC	Too.Vague	24
459	Dietary surveillance and counseling	V653	337026	EC	No.Consensus	44
470	Acquired absence of genital organs	V4577	32927	EC	Too.Vague	41
475	Other venereal dis due to Chlamydia t…	9950	6503	EC	Too.Vague	59
476	Other specified conditions originating perinatal period	77989	33179	EC	Too.Vague	44
479	Organic insomnia, unspecified	32700	18850	EC	No.Consensus	54
487	Chlamydia trachomatis	9941	12081	EC	No.Consensus	54
490	Personal history of malignant neoplas…	V1009	46806	EC	Too.Vague	56
491	Contusion of back	92231	83373	EC	No.Consensus	27
495	High-risk sexual behavior	V692	95710	EC	No.Consensus	54
497	Chest pain, unspecified	78650	1394712	EC	Too.Vague	67
498	History of fall	V1588	13681	EC	No.Consensus	46
502	Other infections specific to the perinatal period	77189	5008	EC	Too.Vague	54
510	Hypertrophy of tonsils alone	47411	86503	EC	No.Consensus	33
527	Ear piercing	V503	23291	EC	No.Consensus	5
528	Body Mass Index between 19 to 24, adult	V851	17572	EC	No.Consensus	4
542	Hernia of unspecified site	5539	159988	EC	Too.Vague	40
547	Streptococcus, unspecified bacterial …	4100	14615	EC	Too.Vague	47
550	Reaction to spinal or lumbar puncture	3490	3460	EC	Too.Vague	45
579	Laboratory examination, unspecified	V7260	15980	EC	Too.Vague	23
594	Unspecified septicemia	389	37630	EC	No.Consensus	93
603	Systemic lupus erythematosus	7100	168594	EC	No.Consensus	70
627	Personal history of noncompliance wit…	V1581	52542	EC	No.Consensus	44
634	Exposure to pot hazardous bodily fluids	V1585	117969	EC	Too.Vague	65
639	Other/unspec complications of medical…	9999	9554	EC	Too.Vague	35
643	Allergic rhinitis due to food	4771	27114	EC	No.Consensus	29
651	Arthropod-borne disease, unspecified	889	28430	EC	Too.Vague	54
659	Varicella without mention of complica…	529	111509	EC	No.Consensus	46
661	Other replacement	V4369	9344	EC	Too.Vague	27
681	Observation following alleged rape or…	V715	4809	EC	No.Consensus	65
682	Other specified general medical exami…	V708	51330	EC	No.Consensus	42
686	Unspecified follow-up examination	V679	1367568	EC	Too.Vague	19
701	Nonallopathic lesions, abdomen and other	7399	122158	EC	No.Consensus	25
741	Contusion of multiple sites, not else…	9248	53026	EC	Too.Vague	32
753	Fracture of nasal bones, closed	8020	46806	EC	No.Consensus	40
764	Personal history Other disorders of nervous system and…	V1249	116088	EC	Too.Vague	44
773	Other person consult on behalf of another…	V6519	3406	EC	No.Consensus	19
813	Other Streptococcus bacterial infection	4109	3798	EC	Too.Vague	44
827	Other specified diffuse diseases of c…	7108	37630	EC	Too.Vague	38
843	Personal history of other injury	V1559	55619	EC	Too.Vague	27
852	Personal history of other hazards to …	V1589	84508	EC	Too.Vague	27
856	Alcohol withdrawal delirium	2910	28236	EC	No.Consensus	78
861	Other specified viral infection	7989	2557	EC	Too.Vague	32
867	Special screening for malignant neopl…	V7644	124634	EC	Too.Vague	39
870	Special screening examination for ven…	V745	137618	EC	Too.Vague	39
873	Benign carcinoid tumor of unknown prim..	20960	9973	EC	Too.Vague	66
881	Surgical/oth proc not carried out bec…	V642	28045	EC	No.Consensus	14
890	Prophylactic vaccination/inoculation …	V053	45360	EC	No.Consensus	46
891	Sleep related leg cramps	32752	28430	EC	No.Consensus	39
896	Other specified delays in development	3158	22020	EC	Too.Vague	55
929	Oth current conds class elsewhr, ante…	64893	132471	EC	Too.Vague	36
932	Hemophilus influenzae [H. influenzae]…	415	9554	EC	Too.Vague	48
942	Examination following radiotherapy	V671	3742	EC	Too.Vague	28
950	Glossopharyngeal neuralgia	3521	7687	EC	No.Consensus	48
952	Angioneurotic edema	9951	67242	EC	No.Consensus	57
973	Contact with or exposure to varicella	V0171	6501	EC	No.Consensus	29
974	Human papilloma virus	794	11439	EC	No.Consensus	44
977	Abdominal or pelvic swelling, mass, o…	78930	82946	EC	Too.Vague	62
980	Coxsackie virus	792	6288	EC	Too.Vague	41
989	Special screening for unspecified con…	V829	24545	EC	Too.Vague	24
999	Other lymphedema	4571	12447	EC	No.Consensus	41
1016	Polyphagia	7836	42397	EC	No.Consensus	37
1021	Lack of adequate sleep	V694	13326	EC	Too.Vague	34
1038	Other specified contraceptive management	V258	80541	EC	No.Consensus	47
1068	Other nongonococcal urethritis [NGU], …	9940	13006	EC	No.Consensus	52
1072	Open wound of upper arm, complicated	88013	9986	EC	Too.Vague	50
1082	Other and unspecified diseases of the…	5289	173005	EC	No.Consensus	34
1084	Acquired deformity of other specified…	7388	4342	EC	Too.Vague	28
1089	Benign neoplasm of tongue	2101	37630	EC	No.Consensus	34
1108	Abnormal chest sounds	7867	37630	EC	Too.Vague	45
1154	Leukorrhea, not specified as infective	6235	159964	EC	No.Consensus	29
1156	Contusion of face, scalp, and neck ex…	920	112907	EC	No.Consensus	34
1174	Benign neoplasm of other specified sites	2298	16425	EC	Too.Vague	31
1182	Unspecified viral infection	7999	521567	EC	Too.Vague	34
1193	Contusion of unspecified site	9249	220991	EC	Too.Vague	29
1221	Foreign body in mouth	9350	4371	EC	No.Consensus	41
1239	Other nonspecific abnormal findings	7969	9388	EC	Too.Vague	28
1263	Flushing	78262	16935	EC	No.Consensus	26
1266	Candidiasis of unspecified site	1129	169614	EC	No.Consensus	32
1275	Special screening for other/unspec ca…	V812	164577	EC	Too.Vague	44
1278	Unspecified vitamin B deficiency	2669	47238	EC	Too.Vague	41
1288	Other counseling and advice for contr…	V2509	365741	EC	No.Consensus	47
1302	Contact with or exp to other communic…	V0189	36617	EC	Too.Vague	35
1303	Polyarticular juvenile rheumatoid art…	71430	7136	EC	No.Consensus	65
1319	Disorders of soft tissue, unspecified	72990	12647	EC	Too.Vague	35
1322	Swelling of limb	72981	342354	EC	Too.Vague	49
1328	Mechan complic due to oth implnt/inte…	99659	18558	EC	Too.Vague	47
1341	Infected postoperative seroma	99851	3798	EC	Too.Vague	52
1385	Contusion of buttock	92232	46913	EC	No.Consensus	32
1391	Genital herpes, unspecified	5410	66679	EC	Too.Vague	46
1406	Polymyalgia rheumatica	725	97420	EC	No.Consensus	60
1407	Special screening examination for mal…	V751	17594	EC	No.Consensus	32
1446	Other and unspec Escherichia coli [E. coli]	4149	3177	EC	Too.Vague	50
1470	Gilles de la Tourette's disorder	30723	15223	EC	No.Consensus	50
1471	Other chronic pain	33829	2012835	EC	Too.Vague	59
1473	Streptococcus, Group B bacterial infe…	4102	16950	EC	Too.Vague	50
1491	Tracheoesophageal fistula, esophageal…	7503	5234	EC	No.Consensus	66
1495	Other healthy infant or child receivi…	V201	22341	EC	Too.Vague	30
1498	Decreased libido	79981	39003	EC	No.Consensus	40
1504	Urethritis, unspecified	59780	82696	EC	No.Consensus	53
1521	Exposure to mold	V8731	17594	EC	No.Consensus	30
1612	Neonatal Candida infection	7717	18061	EC	Too.Vague	47
1615	Personal history of other infectious …	V1209	97978	EC	Too.Vague	39
1619	Prophylactic vaccin/inoculatn agnst m…	V064	24878	EC	No.Consensus	45
1625	Sciatia	7243	860164	EC	No.Consensus	42
1631	Other specified preoperative examination	V7283	253185	EC	No.Consensus	39
1644	Open wound of hip and thigh with tend…	8902	1985	EC	No.Consensus	60
1647	Other disorders of soft tissue	72999	4074	EC	Too.Vague	33
1680	Neoplasms of unspecified nature site …	2399	12719	EC	Too.Vague	50
1682	Contusion of unspecified part of lowe…	9245	51593	EC	No.Consensus	22
1699	Contusion of thigh	92400	10432	EC	No.Consensus	15
1701	Herpetic gingivostomatitis	542	5987	EC	No.Consensus	40
1706	Late effects of other and unspec infe…	1398	28430	EC	Too.Vague	42
1729	Other ventral hernia	55329	4511	EC	No.Consensus	36
1731	Abnormality of gait	7812	142207	EC	No.Consensus	40
1736	Oth & unspec spec symptoms/syndromes,…	3079	7312	EC	Too.Vague	42
1737	Other symptoms involving head and neck	78499	149981	EC	Too.Vague	42
1744	Anaphylactic shock due to peanuts	99561	12776	EC	No.Consensus	91
1746	Premenstrual tension syndromes	6254	118033	EC	No.Consensus	36
1759	Unspecified chlamydial infection	7998	4328	EC	Too.Vague	54
1762	Special screeng exam for oth spec bac…	V748	14753	EC	Too.Vague	36
1773	Other hyperalimentation	2788	16399	EC	No.Consensus	42
1774	Shortness of breath	78605	479608	EC	No.Consensus	85
1776	Hepatic coma	5722	9554	EC	No.Consensus	72
1777	Other abnormal clinical findings	7964	84634	EC	Too.Vague	30
1782	Other drug allergy	99527	113349	EC	Too.Vague	45
1790	Contusion of finger	9233	88972	EC	No.Consensus	20
1791	Personal history of unspecified disease	V139	14372	EC	Too.Vague	30
1792	Staphylococcus bacterial infection, u…	4110	18347	EC	Too.Vague	59
1797	Injury to unspecified site	9599	92535	EC	Too.Vague	30
1806	Injury of face and neck	95909	30920	EC	Too.Vague	54
1813	Other cardiorespiratory problems	V472	28430	EC	Too.Vague	63
1825	Other chest pain	78659	321974	EC	Too.Vague	54
1833	Aftercare following surgery genito sys, nec	V5876	28430	EC	No.Consensus	40
1834	Oth/unspec superfic injury of hip/thi…	9168	12393	EC	No.Consensus	35
1841	Spinal stenosis, lumbar region, w/neuro claudication	72402	103840	EC	No.Consensus	58
1853	Anorexia	7830	92742	EC	No.Consensus	62
1863	Diabetes w/ophthalmic manifestations,…	25050	136985	EC	No.Consensus	66
1870	Ot venereal dis due to Chlamydia trac…	9954	7140	EC	Too.Vague	54
1889	Other specified noninflammatory disor…	6248	31480	EC	Too.Vague	31
1891	Contusion of lower leg	92410	34756	EC	No.Consensus	22

Note: Please contact the corresponding author for more information regarding the data.