Chapter 1
🦠Certain infectious and parasitic diseases (A00-B99)
600 codes · 9 blocks
✓ Includes
- •diseases generally recognized as communicable or transmissible
✗ Excludes 1(Not coded here)
- •certain localized infections - see body system-related chapters
⚠ Excludes 2(Not included here)
- •carrier or suspected carrier of infectious disease (Z22.-)
- •infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- •infectious and parasitic diseases specific to the perinatal period (P35-P39)
- •influenza and other acute respiratory infections (J00-J22)
Use Additional Code
- →code to identify resistance to antimicrobial drugs (Z16.-)
A00-A09Intestinal infectious diseases (A00-A09)View all 94 codes →
A00CholeraHeaderA00.0Cholera due to Vibrio cholerae 01, biovar choleraeBillableA00.1Cholera due to Vibrio cholerae 01, biovar eltorBillableA00.9Cholera, unspecifiedBillableA01Typhoid and paratyphoid feversHeaderA01.0Typhoid feverHeaderA01.00Typhoid fever, unspecifiedBillableA01.01Typhoid meningitisBillable+ 86 more codes in this block →
A15-A19Tuberculosis (A15-A19)View all 61 codes →
A15Respiratory tuberculosisHeaderA15.0Tuberculosis of lungBillableA15.4Tuberculosis of intrathoracic lymph nodesBillableA15.5Tuberculosis of larynx, trachea and bronchusBillableA15.6Tuberculous pleurisyBillableA15.7Primary respiratory tuberculosisBillableA15.8Other respiratory tuberculosisBillableA15.9Respiratory tuberculosis unspecifiedBillable+ 53 more codes in this block →
A30-A49Other bacterial diseases (A30-A49)View all 144 codes →
A30Leprosy [Hansen's disease]HeaderA30.0Indeterminate leprosyBillableA30.1Tuberculoid leprosyBillableA30.2Borderline tuberculoid leprosyBillableA30.3Borderline leprosyBillableA30.4Borderline lepromatous leprosyBillableA30.5Lepromatous leprosyBillableA30.8Other forms of leprosyBillable+ 136 more codes in this block →
A50-A64Infections with a predominantly sexual mode of transmission (A50-A64)View all 169 codes →
A50Congenital syphilisHeaderA50.0Early congenital syphilis, symptomaticHeaderA50.01Early congenital syphilitic oculopathyBillableA50.02Early congenital syphilitic osteochondropathyBillableA50.03Early congenital syphilitic pharyngitisBillableA50.04Early congenital syphilitic pneumoniaBillableA50.05Early congenital syphilitic rhinitisBillableA50.06Early cutaneous congenital syphilisBillable+ 161 more codes in this block →
A65-A69Other spirochetal diseases (A65-A69)View all 33 codes →
A65Nonvenereal syphilisBillableA66YawsHeaderA66.0Initial lesions of yawsBillableA66.1Multiple papillomata and wet crab yawsBillableA66.2Other early skin lesions of yawsBillableA66.3Hyperkeratosis of yawsBillableA66.4Gummata and ulcers of yawsBillableA66.5GangosaBillable+ 25 more codes in this block →
A70-A74Other diseases caused by chlamydiae (A70-A74)View all 11 codes →
A70Chlamydia psittaci infectionsBillableA71TrachomaHeaderA71.0Initial stage of trachomaBillableA71.1Active stage of trachomaBillableA71.9Trachoma, unspecifiedBillableA74Other diseases caused by chlamydiaeHeaderA74.0Chlamydial conjunctivitisBillableA74.8Other chlamydial diseasesHeader+ 3 more codes in this block →
A75-A79Rickettsioses (A75-A79)View all 26 codes →
A75Typhus feverHeaderA75.0Epidemic louse-borne typhus fever due to Rickettsia prowazekiiBillableA75.1Recrudescent typhus [Brill's disease]BillableA75.2Typhus fever due to Rickettsia typhiBillableA75.3Typhus fever due to Rickettsia tsutsugamushiBillableA75.9Typhus fever, unspecifiedBillableA77Spotted fever [tick-borne rickettsioses]HeaderA77.0Spotted fever due to Rickettsia rickettsiiBillable+ 18 more codes in this block →
Showing first 600 codes — use the block links above for complete listings