2022 ICD-10-CM Diagnosis Code B99.9

Unspecified infectious disease

    2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
  • B99.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2022 edition of ICD-10-CM B99.9 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of B99.9 - other international versions of ICD-10 B99.9 may differ.
The following code(s) above B99.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to B99.9:
  • A00-B99
    2022 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • 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 to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
Approximate Synonyms
  • Beta lactam resistant bacterial infection
  • Bilateral acoustic neuritis in infectious disease
  • Biventricular aicd (implanted device) infection
  • Biventricular pacemaker, infection
  • Both sides acoustic neuritis due to infectious disease
  • Cardiovascular device infection
  • Immunosuppression-related infectious disease
  • Implanted defibrillator generator infection
  • Infected pacemaker
  • Infection and inflammatory reaction due to cardiac valve prosthesis
  • Infection associated with biventricular automatic implantable cardioverter defibrillator
  • Infection associated with cardiac device
  • Infection due to aminoglycoside resistant bacteria
  • Infection due to esbl bacteria
  • Infection due to multiple drug resistant microorganisms
  • Infection due to mycobacteria resistant to multiple antimycobacterial agents
  • Infection due to quinolone and fluoroquinolone resistant bacteria
  • Infection due to resistant organism
  • Infection due to sulfonamide resistant bacteria
  • Infection due to tetracycline resistant bacteria
  • Infection of biventricular cardiac pacemaker
  • Infection of cardiac device, initial episode
  • Infection of cardiac graft
  • Infection of cardiac graft, initial episode
  • Infection of coronary artery bypass graft
  • Infection of implanted cardioverter defibrillator
  • Infection of implanted defibrillator generator
  • Infection of pacemaker
  • Infection of prosthetic valve
  • Infection resistant to beta lactam antibiotics
  • Infection resistant to extended spectrum beta lactam antibiotics
  • Infection resistant to multiple antibiotics
  • Infection resistant to penicillin
  • Infection with bacteria resistant to beta-lactam drug
  • Infection with microorganisms resistant to aminoglycoside drugs
  • Infection with microorganisms resistant to cephalosporins and other beta lactams
  • Infection with microorganisms resistant to drugs
  • Infection with microorganisms resistant to quinolone drugs
  • Infection with microorganisms resistant to sulfonamide drugs
  • Infection with microorganisms resistant to tetracycline drugs
  • Infection, immunosuppression related
  • Infectious granuloma
  • Infective myocarditis
  • Left acoustic neuritis due to infectious disease
  • Left acoustic neuritis in infectious disease
  • Myocarditis due to infectious agent
  • Neonatal infection
  • Neonatal infectious disorder
  • Neonatal infective mastitis
  • Neonatal skin infection
  • Neonatal urinary tract infection
  • Oral (mouth) infection
  • Oral infection
  • Right acoustic neuritis due to infectious disease
  • Right acoustic neuritis in infectious disease
ICD-10-CM B99.9 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 867 Other infectious and parasitic diseases diagnoses with mcc
  • 868 Other infectious and parasitic diseases diagnoses with cc
  • 869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert B99.9 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change

Diagnosis Index entries containing back-references to B99.9:
  • Disease, diseased - see also Syndrome
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
    ICD-10-CM Diagnosis Code R50.9

    Fever, unspecified

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    Applicable To
    • Fever NOS
    • Fever of unknown origin [FUO]
    • Fever with chills
    • Fever with rigors
    • Hyperpyrexia NOS
    • Persistent fever
    • Pyrexia NOS
  • Granuloma L92.9
    ICD-10-CM Diagnosis Code L92.9

    Granulomatous disorder of the skin and subcutaneous tissue, unspecified

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    Type 2 Excludes
  • Infection, infected, infective (opportunistic) B99.9

ICD-10-CM Codes Adjacent To B99.9
B97.39 Other retrovirus as the cause of diseases classified elsewhere
B97.4 Respiratory syncytial virus as the cause of diseases classified elsewhere
B97.5 Reovirus as the cause of diseases classified elsewhere
B97.6 Parvovirus as the cause of diseases classified elsewhere
B97.7 Papillomavirus as the cause of diseases classified elsewhere
B97.8 Other viral agents as the cause of diseases classified elsewhere
B97.81 Human metapneumovirus as the cause of diseases classified elsewhere
B97.89 Other viral agents as the cause of diseases classified elsewhere
B99 Other and unspecified infectious diseases
B99.8 Other infectious disease
B99.9 Unspecified infectious disease
C00 Malignant neoplasm of lip
C00.0 Malignant neoplasm of external upper lip
C00.1 Malignant neoplasm of external lower lip
C00.2 Malignant neoplasm of external lip, unspecified
C00.3 Malignant neoplasm of upper lip, inner aspect
C00.4 Malignant neoplasm of lower lip, inner aspect
C00.5 Malignant neoplasm of lip, unspecified, inner aspect
C00.6 Malignant neoplasm of commissure of lip, unspecified
C00.8 Malignant neoplasm of overlapping sites of lip
C00.9 Malignant neoplasm of lip, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.