ICD-10 Code for Carrier

The ICD-10-CM 2027 alphabetic index lists carrier with the subterms below. More specific codes depend on the details documented, as listed in the official index (31 codes, 29 billable).

Index entries for Carrier

Acinetobacter baumannii – Z22.349
- carbapenem-resistant – Z22.340
- carbapenem-sensitive – Z22.341
amebiasis – Z22.1
bacterial disease NEC – Z22.39
- diphtheria – Z22.2
- intestinal infectious NEC – Z22.1
  - typhoid – Z22.0
- meningococcal – Z22.31
- sexually transmitted – Z22.4
- specified NEC – Z22.39
- staphylococcal (Methicillin susceptible) – Z22.321
  - Methicillin resistant – Z22.322
- streptococcal – Z22.338
  - group B – Z22.330
    - complicating pregnancy or delivery – O99.82- (header)
- typhoid – Z22.0
cholera – Z22.1
diphtheria – Z22.2
E. coli (Escherichia coli) – Z22.35- (header)
Enterobacterales – Z22.359
- carbapenem-resistant – Z22.350
- carbapenem-sensitive – Z22.358
- Enterobacterales, specified type NEC – Z22.358
- ESBL-producing – Z22.358
- extended-spectrum beta-lactamase producing – Z22.358
gastrointestinal pathogens NEC – Z22.1
genetic – Z14.8
- cystic fibrosis – Z14.1
- hemophilia A (asymptomatic) – Z14.01
  - symptomatic – Z14.02
gestational, pregnant – Z33.1
gonorrhea – Z22.4
HAA (hepatitis Australian-antigen) – B18.8
HB (c)(s) – B18.1
hepatitis (viral) – B18.9
- Australia-antigen (HAA) – B18.8
- B surface antigen (HBsAg) – B18.1
  - with acute delta- (super) – B17.0
- C – B18.2
- specified NEC – B18.8
human T-cell lymphotropic virus type-1 (HTLV-1) – Z22.6
infectious organism – Z22.9
- specified NEC – Z22.8
K. pneumoniae (Klebsiella pneumoniae) – Z22.35- (header)
meningococci – Z22.31
Salmonella typhosa – Z22.0
serum hepatitis – see Carrier, hepatitis
staphylococci (Methicillin susceptible) – Z22.321
- Methicillin resistant – Z22.322
streptococci – Z22.338
- group B – Z22.330
  - complicating pregnancy or delivery – O99.82- (header)
syphilis – Z22.4
typhoid – Z22.0
venereal disease NEC – Z22.4

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.