Chronic Disease - Inpatient Hospitalization MICA - Diagnosis
The diagnosis categories used in the Chronic Disease - Inpatient Hospitalization MICA are based on the principle diagnosis, which is submitted as the first of 23 possible diagnoses coded on the discharge record. As defined by the Uniform Hospital Discharge Data Set (UHDDS), the principal diagnosis represents the "condition established after study to be chiefly responsible for occasioning the admission of the patient to the hospital for care". You can see the specific diagnoses codes for this MICA in the table below.
For data prior to the fourth quarter of 2015, diagnoses and procedures associated with hospitalizations are classified in accordance with the Ninth Revision of the International Classification of Diseases (ICD-9). This classification is the result of close collaboration among many nations and non-governmental organizations, under the auspices of the World Health Organization. Its original use was to classify causes of mortality. Later, it was extended to include diagnoses in morbidity. For example, the "clinical modification" of the ICD is used in categorizing hospital diagnoses. In practice, the ICD has become the international standard diagnostic classification for all general epidemiological, as well as health management, purposes. The ninth revision of the ICD has been used to classify disease and procedures beginning January 1, 1979, through September 30, 2015.
Clinical Classification Software
The procedure and diagnostic groupings used in the hospitalization Profiles and MICA are based on the Clinical Classification Software (CCS). CCS is a tool for clustering patient diagnoses and procedures into a manageable number of clinically meaningful categories. It was developed by the Agency for Healthcare Research and Quality (AHRQ - formerly known as the Agency for Health Care Policy and Research (AHCPR). The tool is updated periodically. It was originally named the Clinical Classifications for Health Policy Research (CCHPR). The CCS compresses the 12,000 diagnosis codes of the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) into 259 mutually exclusive categories. In its multi-level mode, the system further categorizes these 259 into some 26 broader groupings. The 3,500 procedure codes of the ICD are similarly compacted into 231 groups. The system can be used with any data that are coded using the ICD-9-CM. It has been shown to be helpful in understanding and analyzing patient data by managed care plans, insurers and researchers.
Further information on the clinical classification, as well as the list of diagnoses and procedures utilized by CCS, can be found at http://www.hcup-us.ahrq.gov/toolssoftware/ccs/ccs.jsp.
| Chronic Disease Diagnosis | ICD-9-CM Codes |
Alcohol and substance-related mental disorders |
|
Alcohol-related mental disorders |
2910 2911 2912 2913 2914 2915 2918 29181 29182 29189 2919 30300 30301 30302 30303 30390 30391 30392 30393 30500 30501 30502 30503 3575 4255 5353 53530 53531 5710 5711 5712 5713 76071 9800 |
Substance-related mental disorders |
2920 29211 29212 2922 29281 29282 29283 29284 29285 29289 2929 30400 30401 30402 30403 30410 30411 30412 30413 30420 30421 30422 30423 30430 30431 30432 30433 30440 30441 30442 30443 30450 30451 30452 30453 30460 30461 30462 30463 30470 30471 30472 30473 30480 30481 30482 30483 30490 30491 30492 30493 30520 30521 30522 30523 30530 30531 30532 30533 30540 |
Asthma |
49300 49301 49302 49310 49311 49312 49320 49321 49322 49381 49382 49390 49391 49392 |
Atherosclerosis |
4400 4401 4402 44020 44021 44022 44023 44029 4404 4408 4409 4439 5570 5571 5579 |
Cerebrovascular disease |
|
Acute cerebrovascular disease |
34660 34661 34662 34663 430 431 4320 4321 4329 43301 43311 43321 43331 43381 43391 4340 43400 43401 4341 43410 43411 4349 43490 43491 436 |
Late effects of cerebrovascular disease |
438 4380 43810 43811 43812 43813 43814 43819 43820 43821 43822 43830 43831 43832 43840 43841 43842 43850 43851 43852 43853 4386 4387 43881 43882 43883 43884 43885 43889 4389 |
Occlusion or stenosis of precerebral arteries |
4330 43300 4331 43310 4332 43320 4333 43330 4338 43380 4339 43390 |
Other and ill-defined cerebrovascular disease |
4370 4371 4373 4374 4375 4376 4377 4378 4379 |
Transient cerebral ischemia |
4350 4351 4352 4353 4358 4359 |
Chronic obstructive pulmonary disease and bronchiectasis |
490 4910 4911 4912 49120 49121 49122 4918 4919 4920 4928 494 4940 4941 496 |
Chronic renal failure |
585 5851 5852 5853 5854 5855 5856 5859 7925 V420 V451 V4511 V4512 V560 V561 V562 V5631 V5632 V568 |
Diabetes |
|
Diabetes mellitus with complications |
24901 24910 24911 24920 24921 24930 24931 24940 24941 24950 24951 24960 24961 24970 24971 24980 24981 24990 24991 25002 25003 25010 25011 25012 25013 25020 25021 25022 25023 25030 25031 25032 25033 25040 25041 25042 25043 25050 25051 25052 25053 25060 25061 25062 25063 25070 25071 25072 25073 25080 25081 25082 25083 25090 25091 25092 25093 |
Diabetes mellitus without complication |
24900 25000 25001 7902 79021 79022 79029 7915 7916 V4585 V5391 V6546 |
Diseases of the heart |
|
Acute myocardial infarction |
4100 41000 41001 41002 4101 41010 41011 41012 4102 41020 41021 41022 4103 41030 41031 41032 4104 41040 41041 41042 4105 41050 41051 41052 4106 41060 41061 41062 4107 41070 41071 41072 4108 41080 41081 41082 4109 41090 41091 41092 |
Cardiac arrest and ventricular fibrillation |
42741 42742 4275 |
Cardiac dysrhythmias |
4270 4271 4272 42731 42732 42760 42761 42769 42781 42789 4279 7850 7851 |
Conduction disorders |
4260 42610 42611 42612 42613 4262 4263 4264 42650 42651 42652 42653 42654 4266 4267 42681 42682 42689 4269 V450 V4500 V4501 V4502 V4509 V533 V5331 V5332 V5339 |
Congestive heart failure- nonhypertensive |
39891 4280 4281 42820 42821 42822 42823 42830 42831 42832 42833 42840 42841 42842 42843 4289 |
Coronary atherosclerosis and other heart disease |
4110 4111 4118 41181 41189 412 4130 4131 4139 4140 41400 41401 41406 4142 4143 4144 4148 4149 V4581 V4582 |
Heart valve disorders |
3940 3941 3942 3949 3950 3951 3952 3959 3960 3961 3962 3963 3968 3969 3970 3971 3979 4240 4241 4242 |
Nonspecific chest pain |
78650 78651 78659 |
Other and ill-defined heart disease |
41410 41411 41412 41419 4291 4292 4293 4295 4296 42971 42979 42981 42982 42983 42989 4299 |
Peri- endo- and myocarditis- cardiomyopathy (except that caused by tuberculosis or sexually transmitted disease) |
03282 03640 03641 03642 03643 07420 07421 07422 07423 11281 11503 11504 11513 11514 11593 11594 1303 3910 3911 3912 3918 3919 3920 393 3980 39890 39899 4200 42090 42091 42099 4210 4211 4219 4220 42290 42291 42292 42293 42299 4230 4231 4232 4233 4238 4239 4250 4251 42511 42518 4252 4253 4254 4257 4258 4259 4290 |
Pulmonary heart disease |
4150 4151 41512 41513 41519 4160 4161 4162 4168 4169 4170 4171 4178 4179 V1255 |
Epilepsy- convulsions |
3450 34500 34501 3451 34510 34511 3452 3453 3454 34540 34541 3455 34550 34551 3456 34560 34561 3457 34570 34571 3458 34580 34581 3459 34590 34591 7803 78031 78032 78033 78039 |
Hypertension |
|
Essential hypertension |
4011 4019 |
Hypertension with complications and secondary hypertension |
4010 40200 40201 40210 40211 40290 40291 4030 40300 40301 4031 40310 40311 4039 40390 40391 4040 40400 40401 40402 40403 4041 40410 40411 40412 40413 4049 40490 40491 40492 40493 40501 40509 40511 40519 40591 40599 4372 |
Liver disease |
|
Liver disease- alcohol-related |
5710 5711 5712 5713 |
Other liver disease |
570 5715 5716 5718 5719 5720 5721 5722 5723 5724 5728 5730 5734 5735 5738 5739 7824 7891 7895 78959 7904 7905 7948 V427 |
Neoplasms- malignant (cancer) |
|
Cancer- other primary |
|
Cancer of bone and connective tissue |
1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1712 1713 1714 1715 1716 1717 1718 1719 |
Cancer of brain and nervous system |
1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1928 1929 V1085 V1086 |
Cancer of head and neck |
1400 1401 1403 1404 1405 1406 1408 1409 1410 1411 1412 1413 1414 1415 1416 1418 1419 1420 1421 1422 1428 1429 1430 1431 1438 1439 1440 1441 1448 1449 1450 1451 1452 1453 1454 1455 1456 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1478 1479 1480 1481 1482 1483 1488 1489 1490 1491 1498 1499 1600 1601 1602 1603 1604 1605 1608 1609 1610 1611 1612 1613 1618 1619 1950 2300 2310 V1001 V1002 V1021 |
Cancer of thyroid |
193 25802 25803 V1087 |
Cancer- other and unspecified primary |
1640 1641 1642 1643 1648 1649 1760 1761 1762 1763 1764 1765 1768 1769 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1940 1941 1943 1944 1945 1946 1948 1949 1951 1952 1953 1954 1955 1958 20230 20231 20232 20233 20234 20235 20236 20237 20238 20250 20251 20252 20253 20254 20255 20256 20257 20258 20260 20261 20262 20263 20264 20265 20266 20267 20268 20922 20925 20926 20927 2340 2348 2349 7951 79510 79511 79512 79513 79514 V1029 V1081 V1084 V1088 V1089 V109 V1090 V1091 V711 |
Cancer- other respiratory and intrathoracic |
1620 1630 1631 1638 1639 1650 1658 1659 2311 2318 2319 V1012 V1020 V1022 |
Cancer of breast |
1740 1741 1742 1743 1744 1745 1746 1748 1749 1750 1759 2330 V103 |
Cancer of bronchus- lung |
1622 1623 1624 1625 1628 1629 20921 2312 V1011 |
Cancer of lymphatic and hematopoietic tissue |
|
Hodgkin’s disease |
20100 20101 20102 20103 20104 20105 20106 20107 20108 20110 20111 20112 20113 20114 20115 20116 20117 20118 20120 20121 20122 20123 20124 20125 20126 20127 20128 20140 20141 20142 20143 20144 20145 20146 20147 20148 20150 20151 20152 20153 20154 20155 20156 20157 20158 20160 20161 20162 20163 20164 20165 20166 20167 20168 20170 20171 20172 20173 20174 20175 |
Leukemias |
20240 20241 20242 20243 20244 20245 20246 20247 20248 2031 20310 20311 20312 2040 20400 20401 20402 2041 20410 20411 20412 2042 20420 20421 20422 2048 20480 20481 20482 2049 20490 20491 20492 2050 20500 20501 20502 2051 20510 20511 20512 2052 20520 20521 20522 2053 20530 20531 20532 2058 20580 20581 20582 2059 20590 20591 20592 2060 20600 20601 |
Multiple myeloma |
2030 20300 20301 20302 2038 20380 20381 20382 |
Non-Hodgkin’s lymphoma |
20000 20001 20002 20003 20004 20005 20006 20007 20008 20010 20011 20012 20013 20014 20015 20016 20017 20018 20020 20021 20022 20023 20024 20025 20026 20027 20028 20030 20031 20032 20033 20034 20035 20036 20037 20038 20040 20041 20042 20043 20044 20045 20046 20047 20048 20050 20051 20052 20053 20054 20055 20056 20057 20058 20060 20061 20062 20063 20064 20065 |
Cancer of male genital organs |
|
Cancer of other male genital organs |
1871 1872 1873 1874 1875 1876 1877 1878 1879 2335 2336 V1045 V1048 V1049 |
Cancer of prostate |
185 2334 V1046 |
Cancer of testis |
1860 1869 V1047 |
Cancer of ovary and other genital organs |
|
Cancer of other female genital organs |
181 1832 1833 1834 1835 1838 1839 1840 1841 1842 1843 1844 1848 1849 2333 23330 23331 23332 23339 79516 |
Cancer of ovary |
1830 V1043 |
Cancer of skin |
|
Melanomas of skin |
1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 V1082 |
Other non-epithelial cancer of skin |
1730 17300 17301 17302 17309 1731 17310 17311 17312 17319 1732 17320 17321 17322 17329 1733 17330 17331 17332 17339 1734 17340 17341 17342 17349 1735 17350 17351 17352 17359 1736 17360 17361 17362 17369 1737 17370 17371 17372 17379 1738 17380 17381 17382 17389 1739 17390 17391 17392 17399 20931 20932 20933 20934 20935 20936 2320 2321 2322 2323 |
Cancer of urinary organs |
|
Cancer of bladder |
1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 2337 V1051 |
Cancer of kidney and renal pelvis |
1890 1891 20924 V1052 V1053 |
Cancer of other urinary organs |
1892 1893 1894 1898 1899 2339 V1050 V1059 |
Cancer of uterus and cervix |
|
Cancer of cervix |
1800 1801 1808 1809 2331 7950 79501 79502 79503 79504 79506 V1041 |
Cancer of uterus |
179 1820 1821 1828 2332 V1042 |
Colorectal cancer |
|
Cancer of colon |
1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1590 20910 20911 20912 20913 20914 20915 20916 2303 V1005 |
Cancer of rectum and anus |
1540 1541 1542 1543 1548 20917 2304 2305 2306 79670 79671 79672 79673 79674 79676 V1006 |
Malignant neoplasm without specification of site |
1990 1991 1992 20920 20929 20930 20970 20975 20979 |
Other gastrointestinal cancer |
|
Cancer of esophagus |
1500 1501 1502 1503 1504 1505 1508 1509 2301 V1003 |
Cancer of liver and intrahepatic bile duct |
1550 1551 1552 2308 V1007 |
Cancer of other GI organs- peritoneum |
1520 1521 1522 1523 1528 1529 1560 1561 1562 1568 1569 1580 1588 1589 1591 1598 1599 20900 20901 20902 |
Cancer of pancreas |
1570 1571 1572 1573 1574 1578 1579 |
Cancer of stomach |
1510 1511 1512 1513 1514 1515 1516 1518 1519 20923 2302 V1004 |
Secondary malignancies |
1960 1961 1962 1963 1965 1966 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1980 1981 1982 1983 1984 1985 1986 1987 19881 19882 19889 20971 20972 20973 20974 51181 78951 |
Non-traumatic joint disorders |
|
Osteoarthritis |
71500 71504 71509 71510 71511 71512 71513 71514 71515 71516 71517 71518 71520 71521 71522 71523 71524 71525 71526 71527 71528 71530 71531 71532 71533 71534 71535 71536 71537 71538 71580 71589 71590 71591 71592 71593 71594 71595 71596 71597 71598 V134 |
Other non-traumatic joint disorders |
7130 7131 7132 7133 7134 7135 7136 7137 7138 71600 71601 71602 71603 71604 71605 71606 71607 71608 71609 71620 71621 71622 71623 71624 71625 71626 71627 71628 71629 71630 71631 71632 71633 71634 71635 71636 71637 71638 71639 71640 71641 71642 71643 71644 71645 71646 71647 71648 71649 71650 71651 71652 71653 71654 71655 71656 71657 71658 71659 71660 71661 71662 71663 71664 71665 71666 71667 71668 71680 71681 71682 71683 71684 71685 71686 71687 71688 71689 71690 71691 71692 71693 71694 71695 71696 71697 71698 71699 71810 71811 71812 71813 71814 71815 71817 71818 71819 71820 71821 71822 71823 71824 71825 71826 71827 71828 71829 71850 71851 71852 71853 71854 71855 71856 71857 71858 71859 71860 71865 71870 71871 71872 71873 71874 71875 71876 71877 71878 71879 71880 71881 71882 71883 71884 71885 71886 71887 71888 71889 71890 71891 71892 71893 71894 71895 71897 71898 71899 71900 71901 71902 71903 71904 71905 71906 71907 71908 71909 71910 71911 71912 71913 71914 71915 71916 71917 71918 71919 71920 71921 71922 71923 71924 71925 71926 71927 71928 71929 71930 71931 71932 71933 71934 71935 71936 71937 71938 71939 71940 71941 71942 71943 71944 71945 71946 71947 71948 71949 71950 71951 71952 71953 71954 71955 71956 71957 71958 71959 71960 71961 71962 71963 71964 71965 71966 71967 71968 71969 7197 71970 71975 71976 71977 71978 71979 71980 71981 71982 71983 71984 71985 71986 71987 71988 71989 71990 71991 71992 71993 71994 71995 71996 71997 71998 71999 |
Rheumatoid arthritis and related disease |
7140 7141 7142 71430 71431 71432 71433 7144 71481 71489 7149 7200 |
Other cardiovascular/circulatory conditions |
|
Aortic- peripheral- and visceral artery aneurysms |
4410 44100 44101 44102 44103 4411 4412 4413 4414 4415 4416 4417 4419 4420 4421 4422 4423 44281 44282 44283 44284 44289 4429 44321 44322 44323 44324 44329 44770 44771 44772 44773 |
Aortic and peripheral arterial embolism or thrombosis |
4440 44401 44409 4441 44421 44422 44481 44489 4449 44501 44502 44581 44589 |
Hemorrhoids |
4550 4551 4552 4553 4554 4555 4556 4557 4558 4559 |
Other circulatory disease |
4430 4431 44381 44382 44389 4460 4461 4462 44620 44621 44629 4463 4464 4465 4466 4467 4470 4471 4472 4473 4474 4475 4476 4478 4479 4480 4481 4489 4580 4581 4588 4589 4590 45989 4599 7859 79430 79431 79439 7962 V125 V1250 V1253 V1254 V1259 V151 V421 V432 V4321 V4322 V434 V717 |
Other diseases of veins and lymphatics |
4563 4564 4565 4566 4568 4570 4571 4572 4578 4579 4591 45910 45911 45912 45913 45919 4592 45930 45931 45932 45933 45939 45981 |
Phlebitis- thrombophlebitis and thromboembolism |
4510 45111 45119 4512 45181 45182 45183 45184 45189 4519 452 4530 4531 4532 4533 45340 45341 45342 45350 45351 45352 4536 45371 45372 45373 45374 45375 45376 45377 45379 4538 45381 45382 45383 45384 45385 45386 45387 45389 4539 V1251 V1252 |
Varicose veins of lower extremity |
4540 4541 4542 4548 4549/p> |
Sickle cell anemia |
28241 28242 2825 28260 28261 28262 28263 28264 28268 28269 |