2022 ICD-10-CM Diagnosis Code B77.81

Ascariasis pneumonia

    2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
  • B77.81 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 B77.81 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of B77.81 - other international versions of ICD-10 B77.81 may differ.
The following code(s) above B77.81 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 B77.81:
  • 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
  • B77
    ICD-10-CM Diagnosis Code B77

    Ascariasis

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Includes
    • ascaridiasis
    • roundworm infection
    Ascariasis
ICD-10-CM B77.81 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 391 Esophagitis, gastroenteritis and miscellaneous digestive disorders with mcc
  • 392 Esophagitis, gastroenteritis and miscellaneous digestive disorders without mcc

Convert B77.81 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
Code annotations containing back-references to B77.81:
  • Type 1 Excludes: J17
    ICD-10-CM Diagnosis Code J17

    Pneumonia in diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code Manifestation Code
    Code First
    • underlying disease, such as:
    • Q fever (A78)
    • rheumatic fever (I00)
    • schistosomiasis (B65.0-B65.9)
    Type 1 Excludes
    • candidial pneumonia (B37.1)
    • chlamydial pneumonia (J16.0)
    • gonorrheal pneumonia (A54.84)
    • histoplasmosis pneumonia (B39.0-B39.2)
    • measles pneumonia (B05.2)
    • nocardiosis pneumonia (A43.0)
    • pneumocystosis (B59)
    • pneumonia due to Pneumocystis carinii (B59)
    • pneumonia due to Pneumocystis jiroveci (B59)
    • pneumonia in actinomycosis (A42.0)
    • pneumonia in anthrax (A22.1)
    • pneumonia in ascariasis (B77.81)
    • pneumonia in aspergillosis (B44.0-B44.1)
    • pneumonia in coccidioidomycosis (B38.0-B38.2)
    • pneumonia in cytomegalovirus disease (B25.0)
    • pneumonia in toxoplasmosis (B58.3)
    • rubella pneumonia (B06.81)
    • salmonella pneumonia (A02.22)
    • spirochetal infection NEC with pneumonia (A69.8)
    • tularemia pneumonia (A21.2)
    • typhoid fever with pneumonia (A01.03)
    • varicella pneumonia (B01.2)
    • whooping cough with pneumonia (A37 with fifth-character 1)

Diagnosis Index entries containing back-references to B77.81:
  • Ascariasis B77.9
    ICD-10-CM Diagnosis Code B77.9

    Ascariasis, unspecified

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    • with
      • pneumonia, pneumonitis B77.81
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) J18.9
    ICD-10-CM Diagnosis Code J18.9

    Pneumonia, unspecified organism

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    • in (due to)
      • ascariasis B77.81
    • Ascaris B77.81

ICD-10-CM Codes Adjacent To B77.81
B74.9 Filariasis, unspecified
B75 Trichinellosis
B76 Hookworm diseases
B76.0 Ancylostomiasis
B76.1 Necatoriasis
B76.8 Other hookworm diseases
B76.9 Hookworm disease, unspecified
B77 Ascariasis
B77.0 Ascariasis with intestinal complications
B77.8 Ascariasis with other complications
B77.81 Ascariasis pneumonia
B77.89 Ascariasis with other complications
B77.9 Ascariasis, unspecified
B78 Strongyloidiasis
B78.0 Intestinal strongyloidiasis
B78.1 Cutaneous strongyloidiasis
B78.7 Disseminated strongyloidiasis
B78.9 Strongyloidiasis, unspecified
B79 Trichuriasis
B80 Enterobiasis
B81 Other intestinal helminthiases, not elsewhere classified

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