A30-A49 Other Bacterial Disease


ICD-10-CM-tabular April 1 2023

A30 Leprosy [Hansen’s disease]

Includes: infection due to Mycobacterium leprae

Excludes1: sequelae of leprosy (B92)

A30.0 Indeterminate leprosy

I leprosy

A30.1 Tuberculoid leprosy

TT leprosy

A30.2 Borderline tuberculoid leprosy

BT leprosy

A30.3 Borderline leprosy

BB leprosy

A30.4 Borderline lepromatous leprosy

BL leprosy

A30.5 Lepromatous leprosy

LL leprosy

A30.8 Other forms of leprosy

A30.9 Leprosy, unspecified

  1. A31  Infection due to other mycobacteria Excludes2: leprosy (A30.-) tuberculosis (A15-A19) A31.0 Pulmonary mycobacterial infection Infection due to Mycobacterium avium
    Infection due to Mycobacterium intracellulare [Battey bacillus] Infection due to Mycobacterium kansasii A31.1 Cutaneous mycobacterial infection Buruli ulcer
    Infection due to Mycobacterium marinum Infection due to Mycobacterium ulcerans A31.2 Disseminated mycobacterium avium-intracellulare complex (DMAC) MAC sepsis A31.8 Other mycobacterial infections A31.9 Mycobacterial infection, unspecified Atypical mycobacterial infection NOS Mycobacteriosis NOS
  2. A32  Listeriosis
    listerial foodborne infection
    Excludes1: neonatal (disseminated) listeriosis (P37.2) A32.0 Cutaneous listeriosis
    A32.1 Listerial meningitis and meningoencephalitis
    A32.11 Listerial meningitis
    A32.12 Listerial meningoencephalitis

A32.7 Listerial sepsis
A32.8 Other forms of listeriosis

  1. A32.81  Oculoglandular listeriosis
  2. A32.82  Listerial endocarditis

A32.89 Other forms of listeriosis

Listerial cerebral arteritis

A32.9 Listeriosis, unspecified

  1. A33  Tetanus neonatorum
  2. A34  Obstetrical tetanus
  3. A35  Other tetanus Tetanus NOS Excludes1: obstetrical tetanus (A34) tetanus neonatorum (A33)
  4. A36  DiphtheriaA36.0 Pharyngeal diphtheria Diphtheritic membranous angina Tonsillar diphtheria A36.1 Nasopharyngeal diphtheria A36.2 Laryngeal diphtheria Diphtheritic laryngotracheitis A36.3 Cutaneous diphtheria Excludes2: erythrasma (L08.1) A36.8 Other diphtheria
    1. A36.81  Diphtheritic cardiomyopathy Diphtheritic myocarditis
    2. A36.82  Diphtheritic radiculomyelitis
    3. A36.83  Diphtheritic polyneuritis
    4. A36.84  Diphtheritic tubulo-interstitial nephropathy
    5. A36.85  Diphtheritic cystitis
    6. A36.86  Diphtheritic conjunctivitis

A36.89 Other diphtheritic complications

Diphtheritic peritonitis

A36.9 Diphtheria, unspecified A37 Whooping cough

A37.0 Whooping cough due to Bordetella pertussis

A37.00 Whooping cough due to Bordetella pertussis without pneumonia

Paroxysmal cough due to Bordetella pertussis without pneumonia

A37.01 Whooping cough due to Bordetella pertussis with pneumonia

Paroxysmal cough due to Bordetella pertussis with pneumonia

A37.1 Whooping cough due to Bordetella parapertussis
A37.10 Whooping cough due to Bordetella parapertussis without pneumonia A37.11 Whooping cough due to Bordetella parapertussis with pneumonia

  1. A37.8  Whooping cough due to other Bordetella species
    A37.80 Whooping cough due to other Bordetella species without pneumonia A37.81 Whooping cough due to other Bordetella species with pneumonia
  2. A37.9  Whooping cough, unspecified species
    1. A37.90  Whooping cough, unspecified species without pneumonia
    2. A37.91  Whooping cough, unspecified species with pneumonia
  1. A38  Scarlet fever Includes: scarlatina Excludes2: streptococcal sore throat (J02.0) A38.0 Scarlet fever with otitis media A38.1 Scarlet fever with myocarditis A38.8 Scarlet fever with other complications A38.9 Scarlet fever, uncomplicated Scarlet fever, NOS
  2. A39  Meningococcal infectionA39.0 Meningococcal meningitisA39.1 Waterhouse-Friderichsen syndrome Meningococcal hemorrhagic adrenalitis Meningococcic adrenal syndrome
    1. A39.2  Acute meningococcemia
    2. A39.3  Chronic meningococcemia
    3. A39.4  Meningococcemia, unspecified
    4. A39.5  Meningococcal heart disease A39.50 Meningococcal carditis, unspecified A39.51 Meningococcal endocarditis
      A39.52 Meningococcal myocarditis
      A39.53 Meningococcal pericarditis

A39.8 Other meningococcal infections
A39.81 Meningococcal encephalitis A39.82 Meningococcal retrobulbar neuritis

A39.83 Meningococcal arthritis

A39.84 Postmeningococcal arthritis

A39.89 Other meningococcal infections

Meningococcal conjunctivitis

A39.9 Meningococcal infection, unspecified

Meningococcal disease NOS

  1. A40  Streptococcal sepsis Code first postprocedural streptococcal sepsis (T81.4-) streptococcal sepsis during labor (O75.3) streptococcal sepsis following abortion or ectopic or molar pregnancy (O03-O07, O08.0) streptococcal sepsis following immunization (T88.0)
    streptococcal sepsis following infusion, transfusion or therapeutic injection (T80.2-) Excludes1: neonatal (P36.0-P36.1) puerperal sepsis (O85) sepsis due to Streptococcus, group D (A41.81) A40.0 Sepsis due to streptococcus, group A A40.1 Sepsis due to streptococcus, group B A40.3 Sepsis due to Streptococcus pneumoniae Pneumococcal sepsis A40.8 Other streptococcal sepsis A40.9 Streptococcal sepsis, unspecified
  2. A41  Other sepsis Code first postprocedural sepsis (T81.4-) sepsis during labor (O75.3) sepsis following abortion, ectopic or molar pregnancy (O03-O07, O08.0) sepsis following immunization (T88.0)
    sepsis following infusion, transfusion or therapeutic injection (T80.2-) Excludes1: bacteremia NOS (R78.81) neonatal (P36.-) puerperal sepsis (O85) streptococcal sepsis (A40.-) Excludes2: sepsis (due to) (in) actinomycotic (A42.7) sepsis (due to) (in) anthrax (A22.7) sepsis (due to) (in) candidal (B37.7)
    sepsis (due to) (in) Erysipelothrix (A26.7)
    sepsis (due to) (in) extraintestinal yersiniosis (A28.2) sepsis (due to) (in) gonococcal (A54.86)
    sepsis (due to) (in) herpesviral (B00.7)
    sepsis (due to) (in) listerial (A32.7)
    sepsis (due to) (in) melioidosis (A24.1)
    sepsis (due to) (in) meningococcal (A39.2-A39.4) sepsis (due to) (in) plague (A20.7)
    sepsis (due to) (in) tularemia (A21.7)
    toxic shock syndrome (A48.3)

A41.0 Sepsis due to Staphylococcus aureus

A41.01 Sepsis due to Methicillin susceptible Staphylococcus aureus

MSSA sepsis
Staphylococcus aureus sepsis NOS

A41.02 Sepsis due to Methicillin resistant Staphylococcus aureus A41.1 Sepsis due to other specified staphylococcus

Coagulase negative staphylococcus sepsis

  1. A41.2  Sepsis due to unspecified staphylococcus
  2. A41.3  Sepsis due to Hemophilus influenzae
  3. A41.4  Sepsis due to anaerobes Excludes1: gas gangrene (A48.0)
  4. A41.5  Sepsis due to other Gram-negative organisms A41.50 Gram-negative sepsis, unspecified Gram-negative sepsis NOS A41.51 Sepsis due to Escherichia coli [E. coli] A41.52 Sepsis due to Pseudomonas Pseudomonas aeroginosa A41.53 Sepsis due to Serratia A41.59 Other Gram-negative sepsis
  1. A41.8  Other specified sepsis A41.81 Sepsis due to Enterococcus A41.89 Other specified sepsis
  2. A41.9  Sepsis, unspecified organism Septicemia NOS
  1. A42  Actinomycosis
    actinomycetoma (B47.1)
    1. A42.0  Pulmonary actinomycosis
    2. A42.1  Abdominal actinomycosis
    3. A42.2  Cervicofacial actinomycosis
    1. A42.7  Actinomycotic sepsis
    2. A42.8  Other forms of actinomycosis A42.81 Actinomycotic meningitis A42.82 Actinomycotic encephalitis A42.89 Other forms of actinomycosis
    3. A42.9  Actinomycosis, unspecified
  2. A43  Nocardiosis

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

A44 Bartonellosis
A44.0 Systemic bartonellosis

Oroya fever

A44.1 Cutaneous and mucocutaneous bartonellosis

Verruga peruana

A44.8 Other forms of bartonellosis

A44.9 Bartonellosis, unspecified A46 Erysipelas

Excludes1: postpartum or puerperal erysipelas (O86.89)

  1. A48  Other bacterial diseases, not elsewhere classified Excludes1: actinomycetoma (B47.1) A48.0 Gas gangrene Clostridial cellulitis Clostridial myonecrosis A48.1 Legionnaires’ disease
    A48.2 Nonpneumonic Legionnaires’ disease [Pontiac fever] A48.3 Toxic shock syndrome
    Use additional code to identify the organism (B95, B96) Excludes1: endotoxic shock NOS (R57.8) sepsis NOS (A41.9) A48.4 Brazilian purpuric fever Systemic Hemophilus aegyptius infection A48.5 Other specified botulism Non-foodborne intoxication due to toxins of Clostridium botulinum [C. botulinum] Excludes1: food poisoning due to toxins of Clostridium botulinum (A05.1) A48.51 Infant botulism
    A48.52 Wound botulism
    Non-foodborne botulism NOS Use additional code for associated wound A48.8 Other specified bacterial diseases
  2. A49  Bacterial infection of unspecified site Excludes1: bacterial agents as the cause of diseases classified elsewhere (B95-B96) chlamydial infection NOS (A74.9)

meningococcal infection NOS (A39.9) rickettsial infection NOS (A79.9) spirochetal infection NOS (A69.9)

  1. A49.0  Staphylococcal infection, unspecified site
    1. A49.01  Methicillin susceptible Staphylococcus aureus infection, unspecified site Methicillin susceptible Staphylococcus aureus (MSSA) infection Staphylococcus aureus infection NOS
    2. A49.02  Methicillin resistant Staphylococcus aureus infection, unspecified site Methicillin resistant Staphylococcus aureus (MRSA) infection
  2. A49.1  Streptococcal infection, unspecified site
  3. A49.2  Hemophilus influenzae infection, unspecified site
  4. A49.3  Mycoplasma infection, unspecified site
  1. A49.8  Other bacterial infections of unspecified site
  2. A49.9  Bacterial infection, unspecified Excludes1: bacteremia NOS (R78.81)

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