ICD-10-CM Section · A30-A49

Other bacterial diseases

144 codes in this section

144

Total Codes

115

Billable

Header (Non-Billable)

Top-Level Codes

About Section A30-A49

Section A30-A49 (A30-A49) covers other bacterial diseases. It sits within the Certain infectious and parasitic diseases chapter (A00-B99). This section contains 144 ICD-10-CM codes, 115 billable diagnoses you can submit on a claim, and 29 non-billable header codes used to organize the hierarchy.

Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.

Codes in A30-A49

Grouped by 3-character root code. Click any code for full detail.

A30 Leprosy [Hansen's disease]

8 subcodes

A30.0	Indeterminate leprosy	Billable
A30.1	Tuberculoid leprosy	Billable
A30.2	Borderline tuberculoid leprosy	Billable
A30.3	Borderline leprosy	Billable
A30.4	Borderline lepromatous leprosy	Billable
A30.5	Lepromatous leprosy	Billable
A30.8	Other forms of leprosy	Billable
A30.9	Leprosy, unspecified	Billable

A31 Infection due to other mycobacteria

5 subcodes

A31.0	Pulmonary mycobacterial infection	Billable
A31.1	Cutaneous mycobacterial infection	Billable
A31.2	Disseminated mycobacterium avium-intracellulare complex (DMAC)	Billable
A31.8	Other mycobacterial infections	Billable
A31.9	Mycobacterial infection, unspecified	Billable

A32 Listeriosis

10 subcodes

A32.0	Cutaneous listeriosis	Billable
A32.1	Listerial meningitis and meningoencephalitis	Header
A32.11	Listerial meningitis	Billable
A32.12	Listerial meningoencephalitis	Billable
A32.7	Listerial sepsis	Billable
A32.8	Other forms of listeriosis	Header
A32.81	Oculoglandular listeriosis	Billable
A32.82	Listerial endocarditis	Billable
A32.89	Other forms of listeriosis	Billable
A32.9	Listeriosis, unspecified	Billable

A33 Tetanus neonatorum

0 subcodes

A34 Obstetrical tetanus

0 subcodes

A35 Other tetanus

0 subcodes

A36 Diphtheria

13 subcodes

A36.0	Pharyngeal diphtheria	Billable
A36.1	Nasopharyngeal diphtheria	Billable
A36.2	Laryngeal diphtheria	Billable
A36.3	Cutaneous diphtheria	Billable
A36.8	Other diphtheria	Header
A36.81	Diphtheritic cardiomyopathy	Billable
A36.82	Diphtheritic radiculomyelitis	Billable
A36.83	Diphtheritic polyneuritis	Billable
A36.84	Diphtheritic tubulo-interstitial nephropathy	Billable
A36.85	Diphtheritic cystitis	Billable
A36.86	Diphtheritic conjunctivitis	Billable
A36.89	Other diphtheritic complications	Billable
A36.9	Diphtheria, unspecified	Billable

A37 Whooping cough

12 subcodes

A37.0	Whooping cough due to Bordetella pertussis	Header
A37.00	Whooping cough due to Bordetella pertussis without pneumonia	Billable
A37.01	Whooping cough due to Bordetella pertussis with pneumonia	Billable
A37.1	Whooping cough due to Bordetella parapertussis	Header
A37.10	Whooping cough due to Bordetella parapertussis without pneumonia	Billable
A37.11	Whooping cough due to Bordetella parapertussis with pneumonia	Billable
A37.8	Whooping cough due to other Bordetella species	Header
A37.80	Whooping cough due to other Bordetella species without pneumonia	Billable
A37.81	Whooping cough due to other Bordetella species with pneumonia	Billable
A37.9	Whooping cough, unspecified species	Header
A37.90	Whooping cough, unspecified species without pneumonia	Billable
A37.91	Whooping cough, unspecified species with pneumonia	Billable

A38 Scarlet fever

4 subcodes

A38.0	Scarlet fever with otitis media	Billable
A38.1	Scarlet fever with myocarditis	Billable
A38.8	Scarlet fever with other complications	Billable
A38.9	Scarlet fever, uncomplicated	Billable

A39 Meningococcal infection

17 subcodes

A39.0	Meningococcal meningitis	Billable
A39.1	Waterhouse-Friderichsen syndrome	Billable
A39.2	Acute meningococcemia	Billable
A39.3	Chronic meningococcemia	Billable
A39.4	Meningococcemia, unspecified	Billable
A39.5	Meningococcal heart disease	Header
A39.50	Meningococcal carditis, unspecified	Billable
A39.51	Meningococcal endocarditis	Billable
A39.52	Meningococcal myocarditis	Billable
A39.53	Meningococcal pericarditis	Billable
A39.8	Other meningococcal infections	Header
A39.81	Meningococcal encephalitis	Billable
A39.82	Meningococcal retrobulbar neuritis	Billable
A39.83	Meningococcal arthritis	Billable
A39.84	Postmeningococcal arthritis	Billable
A39.89	Other meningococcal infections	Billable
A39.9	Meningococcal infection, unspecified	Billable

A40 Streptococcal sepsis

5 subcodes

A40.0	Sepsis due to streptococcus, group A	Billable
A40.1	Sepsis due to streptococcus, group B	Billable
A40.3	Sepsis due to Streptococcus pneumoniae	Billable
A40.8	Other streptococcal sepsis	Billable
A40.9	Streptococcal sepsis, unspecified	Billable

A41 Other sepsis

18 subcodes

A41.0	Sepsis due to Staphylococcus aureus	Header
A41.01	Sepsis due to Methicillin susceptible Staphylococcus aureus	Billable
A41.02	Sepsis due to Methicillin resistant Staphylococcus aureus	Billable
A41.1	Sepsis due to other specified staphylococcus	Billable
A41.2	Sepsis due to unspecified staphylococcus	Billable
A41.3	Sepsis due to Hemophilus influenzae	Billable
A41.4	Sepsis due to anaerobes	Billable
A41.5	Sepsis due to other Gram-negative organisms	Header
A41.50	Gram-negative sepsis, unspecified	Billable
A41.51	Sepsis due to Escherichia coli [E. coli]	Billable
A41.52	Sepsis due to Pseudomonas	Billable
A41.53	Sepsis due to Serratia	Billable
A41.54	Sepsis due to Acinetobacter baumannii	Billable
A41.59	Other Gram-negative sepsis	Billable
A41.8	Other specified sepsis	Header
A41.81	Sepsis due to Enterococcus	Billable
A41.89	Other specified sepsis	Billable
A41.9	Sepsis, unspecified organism	Billable

A42 Actinomycosis

9 subcodes

A42.0	Pulmonary actinomycosis	Billable
A42.1	Abdominal actinomycosis	Billable
A42.2	Cervicofacial actinomycosis	Billable
A42.7	Actinomycotic sepsis	Billable
A42.8	Other forms of actinomycosis	Header
A42.81	Actinomycotic meningitis	Billable
A42.82	Actinomycotic encephalitis	Billable
A42.89	Other forms of actinomycosis	Billable
A42.9	Actinomycosis, unspecified	Billable

A43 Nocardiosis

4 subcodes

A43.0	Pulmonary nocardiosis	Billable
A43.1	Cutaneous nocardiosis	Billable
A43.8	Other forms of nocardiosis	Billable
A43.9	Nocardiosis, unspecified	Billable

A44 Bartonellosis

4 subcodes

A44.0	Systemic bartonellosis	Billable
A44.1	Cutaneous and mucocutaneous bartonellosis	Billable
A44.8	Other forms of bartonellosis	Billable
A44.9	Bartonellosis, unspecified	Billable

A46 Erysipelas

0 subcodes

A48 Other bacterial diseases, not elsewhere classified

9 subcodes

A48.0	Gas gangrene	Billable
A48.1	Legionnaires' disease	Billable
A48.2	Nonpneumonic Legionnaires' disease [Pontiac fever]	Billable
A48.3	Toxic shock syndrome	Billable
A48.4	Brazilian purpuric fever	Billable
A48.5	Other specified botulism	Header
A48.51	Infant botulism	Billable
A48.52	Wound botulism	Billable
A48.8	Other specified bacterial diseases	Billable

A49 Bacterial infection of unspecified site

8 subcodes

A49.0	Staphylococcal infection, unspecified site	Header
A49.01	Methicillin susceptible Staphylococcus aureus infection, unspecified site	Billable
A49.02	Methicillin resistant Staphylococcus aureus infection, unspecified site	Billable
A49.1	Streptococcal infection, unspecified site	Billable
A49.2	Hemophilus influenzae infection, unspecified site	Billable
A49.3	Mycoplasma infection, unspecified site	Billable
A49.8	Other bacterial infections of unspecified site	Billable
A49.9	Bacterial infection, unspecified	Billable