NLSY79 Attachment 8: Health Codes
NLSY79 Attachment 8: Health Codes
- General Information
- CDC National Vital Statistics System, 113 List
- Modified ICD-9 Codes
- Modified V Codes
- Modified E Codes
- Codes for Parts of Body in Health-related data
General Information on Health Codes
Health Conditions Related to Work Limitations (1979-2000)
The health sections of the NLSY79 surveys for most interview years between 1979-2000 elicited reports of health problems that limited the amount or kind of work the respondent could do. These health problems are coded using a modified version of the International Classification of Diseases (ICD-9) codes taken from the World Health Organization, International Classification of Diseases, Ninth Revision, 2 vols., WHO, Geneva, 1977 (vol. 1) and 1978 (vol. 2).
The health consolidation codes present in 1979, 1981 and 1982 represent the most complete description possible of the respondent's main cause of limitation in work gathered from a reading of the whole health section. They were alsocoded using the modified ICD-9 codes after the rest of the health section has been coded. The health consolidation codes, thus, represent the (proximal) description of the respondent's main cause of limitation in work, and not an underlying cause (remote) preceding the current complaint.
As originally coded, the untruncated NLSY79 health codes corresponded to the ICD-9 codes with the decimal point deleted, except for the supplemental V and E ICD-9 codes. The supplemental ICD-9 codes were modified by dropping the alpha code and adding the remaining numeric portion of the supplemental codes to a larger number. The following numeric conversion was made for the supplemental codes: V codes = 10000+ and E codes = 11000+. (Zero (0) means no health problem). The changes were necessary because alphas are not used as variable values in the NLSY79 data. These ICD-9 codes have then been collapsed further by truncating them by one digit.
A link to the ICD-9 is included below. The NLSY79 modified codes can be tracked back to general disease classifications in the ICD-9 scheme. The supplemental E and V codes and the medical terms associated with them appear in Tables 2-3 below. For more detail, see the International Classification of Diseases, Ninth Revision.
40+, 50+ and 60+ Biological Parent and Respondent Health Conditions (1998-2018)
With the addition of the 40+ Health Module in 1998, questions collecting health conditions for the biological parents of respondents have been asked of the appropriate cohort each round. This has continued with the subsequent 50+ and 60+ Health Modules. In the 50+ and 60+ Health Modules, respondents also have had the opportunity to report any other information they wanted to about their own health.
The major health conditions of respondents’ biological parents collected in the 40+, 50+ and 60+ Health Modules are coded using the CDC, National Vital Statistics System 113 List, contained in Table 4 below. These are taken from the National Vital Statistics Reports, Volume 65, no 2 (2/16/2016), and can be found online at cdc.gov/nchs/data/nvsr/nvsr65/nvsr65_02.pdf.
Parts of Body Affected by Work-Limiting Health Conditions and Reported Cancer (1979-2018)
A set of numeric codes for parts of the body was developed by NORC for the 1979-1981 health sections. These codes are contained in Table 4. They have been used to code parts of the body affected by work-related injuries/illnesses mentioned above. Additionally, respondents have been asked to report cancer diagnoses and parts of the body affected by these cancers in the 40+, 50+ and 60+ Health Modules. The same codes have been applied to parts of the body affected by cancer.
Table 1: CDC – National Vital Statistics System 113 List
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1 – Salmonella infections |
57 - Major cardiovascular diseases: Other heart diseases: Diseases of pericardium and acute myocarditis |
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2 – Shigellosis and amebiasis |
58 - Major cardiovascular diseases: Other heart diseases: Heart failure |
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3 – Certain other intestinal infections |
59 - Major cardiovascular diseases: Other heart diseases: All other forms of heart disease |
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4 – Tuberculosis: Respiratory tuberculosis |
60 – Essential hypertension and hypertensive renal disease |
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5 – Tuberculosis: Other tuberculosis |
61 – Cerebrovascular diseases |
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6 – Whooping cough |
62 – Atherosclerosis |
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7 – Scarlet fever and erysipelas |
63 – Other diseases of circulatory system: Aortic aneurysm and dissection |
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8 – Meningococcal infection |
64 – Other diseases of circulatory system: Other diseases of arteries, arterioles and capillaries |
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9 – Septicemia |
65 – Other disorders of circulatory system |
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10 – Syphilis |
66 – Influenza and pneumonia: Influenza |
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11 – Acute poliomyelitis |
67 – Influenza and pneumonia: Pneumonia |
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12 – Arthropod-borne viral encephalitis |
68 – Other acute lower respiratory infections: Acute bronchitis and bronchiolitis |
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13 – Measles |
69 – Other acute lower respiratory infections: Other and unspecified acute lower respiratory infections |
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14 – Viral hepatitis |
70 – Chronic lower respiratory diseases: Bronchitis, chronic and unspecified |
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15 – Human immunodeficiency virus (HIV) disease |
71 – Chronic lower respiratory diseases: Emphysema |
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16 – Malaria |
72 – Chronic lower respiratory diseases: Asthma |
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17 – Other and unspecified infectious and parasitic diseases and their sequelae |
73 – Chronic lower respiratory diseases: Other chronic lower respiratory diseases |
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18 – Malignant neoplasms: Malignant neoplasms of lip, oral cavity and pharynx |
74 – Pneumoconioses and chemical effects |
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19 - Malignant neoplasms: Malignant neoplasm of esophagus |
75 – Pneumonitis due to solids and liquids |
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20 – Malignant neoplasms: Malignant neoplasm of stomach |
76 – Other diseases of respiratory system |
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21 – Malignant neoplasms: Malignant neoplasms of colon, rectum and anus |
77 – Peptic ulcer |
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22 – Malignant neoplasms: Malignant neoplasms of liver and intrahepatic bile ducts |
78 – Diseases of appendix |
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23 – Malignant neoplasms: Malignant neoplasm of pancreas |
79 – Hemia |
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24 – Malignant neoplasms: Malignant neoplasm of larynx |
80 – Chronic liver disease and cirrhosis: Alcoholic liver disease |
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25 – Malignant neoplasms: Malignant neoplasms of trachea, bronchus and lung |
81 – Chronic liver disease and cirrhosis: Other chronic liver disease and cirrhosis |
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26 – Malignant neoplasms: Malignant melanoma of skin |
82 - Cholelithiasis and other disorders of gallbladder |
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27 – Malignant neoplasms: Malignant neoplasm of breast |
83 – Nephritis, nephrotic syndrome and nephrosis: Acute and rapidly progressive nephritic and nephrotic syndrome |
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28 – Malignant neoplasms: Malignant neoplasm of cervix uteri |
84 – Nephritis, nephrotic syndrome and nephrosis: Chronic glomerulonephritis, nephritis and nephropathy not specified as acute or chronic and renal sclerosis unspecified |
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29 – Malignant neoplasms: Malignant neoplasms of corpus uteri and uterus, part unspecified |
85 – Nephritis, nephrotic syndrome and nephrosis: Renal failure |
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30 – Malignant neoplasms: Malignant neoplasm of ovary |
86 – Nephritis, nephrotic syndrome and nephrosis: Other disorders of kidney |
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31 – Malignant neoplasms: Malignant neoplasm of prostate |
87 – Infections of kidney |
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32 – Malignant neoplasms: Malignant neoplasms of kidney and renal pelvis |
88 – Hyperplasia of prostate |
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33 – Malignant neoplasms: Malignant neoplasm of bladder |
89 – Inflammatory diseases of female pelvic organs |
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34 – Malignant neoplasms: Malignant neoplasms of meninges, brain and other parts of central nervous system |
90 – Pregnancy, childbirth and the puerperium: Pregnancy with abortive outcome |
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35 – Malignant neoplasms: Malignant neoplasms of lymphoid, hematopoietic and related tissue: Hodgkin’s disease |
91 – Pregnancy, childbirth and the puerperium: Other complications of pregnancy, childbirth and the puerperium |
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36 – Malignant neoplasms: Malignant neoplasms of lymphoid, hematopoietic and related tissue:Non-Hodgkin’s lymphoma |
92 – Certain conditions originating in the perinatal period |
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37 – Malignant neoplasms: Malignant neoplasms of lymphoid, hematopoietic and related tissue:Leukemia |
93 – Congenital malformations, deformations and chromosomal abnormalities |
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38 – Malignant neoplasms: Malignant neoplasms of lymphoid, hematopoietic and related tissue:Multiple myeloma and immunoproliferative neoplasms |
94 – Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified |
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39 – Malignant neoplasms: Malignant neoplasms of lymphoid, hematopoietic and related tissue:Other and unspecified malignant neoplasms of lymphois, hematopoietic and related tissue |
95 – All other diseases |
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40 – All other and unspecified malignant neoplasms |
96 – Accidents (unintentional injuries): Transport accidents: Motor vehicle accidents |
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41 – In situ neoplasms, benign neoplasms and neoplasms of uncertain or unknown behavior |
97 – Accidents (unintentional injuries): Transport accidents: Other land transport accidents |
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42 – Anemias |
98 – Accidents (unintentional injuries): Transport accidents: Water, air and space, and other and unspecified transport accidents and their sequelae |
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43 – Diabetes mellitus |
99 – Accidents (unintentional injuries): Nontransport accidents: Falls |
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44 – Nutritional deficiencies: Malnutrition |
100 – Accidents (unintentional injuries): Nontransport accidents: Accidental discharge of firearms |
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45 – Nutritional deficiencies: Other nutritional deficiencies |
101 – Accidents (unintentional injuries): Nontransport accidents: Accidental drowning and submersion |
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46 – Meningitis |
102 – Accidents (unintentional injuries): Nontransport accidents: Accidental exposure to smoke, fire and flames |
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47 – Parkinson’s disease |
103 – Accidents (unintentional injuries): Nontransport accidents: Accidental poisoning and exposure to noxious substances |
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48 – Alzheimer’s disease |
104 – Accidents (unintentional injuries): Nontransport accidents: Other and unspecified nontransport accidents and their sequelae |
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49 – Major cardiovascular diseases: Diseases of heart: Acute rheumatic fever and chronic rheumatic heart disease |
105 – Intentional self-harm (suicide): Intentional self-harm (suicide) by discharge of firearms |
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50 – Major cardiovascular diseases: Diseases of heart: Hypertensive heart and disease |
106 – Intentional self-harm (suicide): Intentional self-harm (suicide) by other and unspecified means the their sequelae |
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51 – Major cardiovascular diseases: Diseases of heart: Hypertensive heart and renal disease |
107 – Assault (homicide): Assault (homicide) by discharge of firearms |
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52 – Major cardiovascular diseases: Ischemic heart diseases: Acute myocardial infarction |
108 – Assault (homicide): Assault (homicide) by other and unspecified means the their sequelae |
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53 – Major cardiovascular diseases: Ischemic heart diseases: Other acute ischemic heart diseases |
109 – Legal Intervention |
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54 – Major cardiovascular diseases: Ischemic heart diseases: Other forms of chronic ischemic heart diseases: Atherosclerotic cardiovascular disease, so described |
110 – Events of undetermined intent: Discharge of firearms, undetermined intent |
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55 – Major cardiovascular diseases: Ischemic heart diseases: Other forms of chronic ischemic heart diseases: All other forms of chronic ischemic heart disease |
111 – Events of undetermined intent: Other and unspecified events of undetermined intent and their sequelae |
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56 - Major cardiovascular diseases: Other heart diseases: Acute and subacute endocarditis |
112 – Operations of war and their sequelae |
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113 – Complications of medical and surgical care |
Modified ICD-9 Codes: The ICD-9 can be found at https://www.cdc.gov/nchs/icd/icd9.htm as well as through many other online resources. With the exception of the E and V codes (see tables below), the truncated codes contained in the NLSY79 data for health conditions affecting ability to work map directly to general disease classifications in the ICD-9 codes.
Supplementary Classification of Factors Influencing Health Status and Contact with Health Services
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1001 - 1007 Persons with potential health hazards related to communicable diseases |
1040 - 1049 Persons with a condition influencing their health status |
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1010 - 1019 Persons with potential health hazards related to personal and family history |
1050 - 1059 Persons encountering health services for specific procedures and aftercare |
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1020 - 1028 Persons encountering health services in circumstances related to reproduction and development |
1060 - 1068 Persons encountering health services in other circumstances |
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1030 - 1039 Healthy liveborn infants according to birth type |
1070 - 1082 Persons without reported diagnosis encountered during examination and investigation of individuals and populations |
Supplementary Classification of External Causes of Injury and Poisoning
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1180 - 1180 Railway accidents |
1188 - 1188 Accidental falls |
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1181 - 1181 Motor vehicle traffic accidents |
1189 - 1189 Accidents caused by fire and flames |
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1182 - 1182 Motor vehicle nontraffic accidents |
1190 - 1190 Accidents due to natural and environmental factors |
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1182 - 1182 Other road vehicle accidents |
1191 - 1191 Accidents caused by submersion, suffocation and foreign bodies |
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1183 - 1183 Water transport accidents |
1191 - 1192 Other accidents and late effects of accidental injury |
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1184 - 1184 Air and space transport accidents |
1193 - 1194 Drugs, medicaments and biological substances causing adverse effects in therapeutic use |
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1184 - 1184 Vehicle accidents not elsewhere classifiable |
1195 - 1195 Suicide and self-inflicted injury |
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1185 - 1185 Accidental poisoning by drugs, medicaments and biologicals |
1196 - 1196 Homicide and injury purposely inflicted by other persons |
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1186 - 1186 Accidental poisoning by other solid and liquid substances, gases and vapours |
1197 - 1197 Legal intervention |
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1187 - 1187 Misadventures to patients during surgical and medical care |
1198 - 1198 Injury undetermined whether accidentally or purposely inflicted |
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1187 - 1187 Surgical and medical procedures as the cause of abnormal reaction of patient or later complication |
1199 - 1199 Injury resulting from operations of war |
Table 4: Codes for Parts of Body in Health Section
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01 Brain, CNS, spinal cord |
49 Penis |
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02 Peripheral nervous system |
50 Other male reproductive system; scrotum; vas deferens; testes |
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03 Emotions, "nerves" |
51 Breast, nipple |
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04 Heart |
52 Vulva, clitoris |
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05 Blood, spleen |
53 Vagina, cervix, uterus |
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06 Vascular system |
54 Other female reproductive system; fallopian tubes; ovaries |
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07 Lymphatic system, lymph glands |
55 Menstruation |
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08 Pituitary gland |
56 Skin |
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09 Thyroid gland |
57 Hair |
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10 Adrenal gland |
58 Scalp |
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11 Other endocrine glands; endocrine system; pineal gland; parathyroid gland; thymus |
59 Nails |
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12 Eye |
60 Head, skull |
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13 Vision |
61 Face, forehead, lips |
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14 Lacrimal gland and duct |
62 Jaw |
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15 Eyelid |
63 Chin |
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16 Ear (inner and outer) |
64 Neck, cervical vertebrae |
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17 Hearing |
65 Back, dorsal spine |
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18 Nose |
66 Low back, lumbar spine |
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19 Smell |
67 Trunk |
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20 Tonsils and adenoids |
68 Chest |
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21 Sinus |
69 Chest wall, external chest; axilla |
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22 Vocal cords, larynx |
70 Collarbone |
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23 Speech |
71 Ribs |
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24 Throat, pharynx |
72 Side, flank |
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25 Lung, trachea and bronchi |
73 Shoulder |
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26 Breathing |
74 Arm |
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27 Mouth and tongue |
75 Upper arm |
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28 Gums |
76 Elbow |
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29 Teeth |
77 Lower arm |
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30 Esophagus |
78 Wrist |
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31 Stomach |
79 Hand (palm) |
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32 Upper digestive tract |
81 Fingers |
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33 Liver |
82 Pelvis |
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34 Biliary tract |
83 Groin |
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35 Gallbladder |
84 Buttocks |
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36 Pancreas |
85 Hip |
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37 Abdomen |
86 Leg |
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38 Upper abdomen |
87 Upper leg, thigh |
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39 Lower abdomen |
88 Knee, kneecap |
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40 Intestine and colon |
89 Lower leg |
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41 Rectum |
90 Ankle |
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42 Anus |
91 Foot |
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43 Lower digestive tract |
92 Toes |
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44 Digestive system |
93 Muscles, tendons, ligaments NOS * |
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45 Kidneys |
94 Bone(s) NOS |
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46 Bladder |
95 Joints NOS |
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47 Prostate |
96 "Entire body" |
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48 Other genitourinary tract; urethra; ureter |
80 Other NOS |
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NOTE: NOS stands for "not otherwise specified" |
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