2021 ICD-10-CM Diagnosis Code B74.3

Loiasis

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • B74.3 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM B74.3 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of B74.3 - other international versions of ICD-10 B74.3 may differ.
Applicable To
  • Calabar swelling
  • Eyeworm disease of Africa
  • Loa loa infection
The following code(s) above B74.3 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 B74.3:
  • A00-B99
    2021 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
  • B74
    ICD-10-CM Diagnosis Code B74

    Filariasis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • onchocerciasis (B73)
    • tropical (pulmonary) eosinophilia NOS (J82)
    Filariasis
Approximate Synonyms
  • Infection by loa loa
Clinical Information
  • A parasitic infection caused by the nematode loa loa. The vector in the transmission of this infection is the horsefly (tabanus) or the deerfly or mango fly (chrysops). The larvae may be seen just beneath the skin or passing through the conjunctiva. Eye lesions are not uncommon. The disease is generally mild and painless.
ICD-10-CM B74.3 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 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 B74.3 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

Diagnosis Index entries containing back-references to B74.3:
  • Calabar swelling B74.3
  • Disease, diseased - see also Syndrome
    • eyeworm of Africa B74.3
  • Eyeworm disease of Africa B74.3
  • Infection, infected, infective (opportunistic) B99.9
    ICD-10-CM Diagnosis Code B99.9

    Unspecified infectious disease

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • Loa loa B74.3
      • with conjunctival infestation B74.3
      • eyelid B74.3
  • Infestation B88.9
    ICD-10-CM Diagnosis Code B88.9

    Infestation, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Infestation (skin) NOS
    • Infestation by mites NOS
    • Skin parasites NOS
    • eyelid
      • in (due to)
        • loiasis B74.3
    • filarial B74.9
      ICD-10-CM Diagnosis Code B74.9

      Filariasis, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • Loa loa B74.3
      • conjunctival B74.3
      • eyelid B74.3
    • eyeworm B74.3
  • Loa loa, loaiasis, loasis B74.3
  • Loiasis B74.3 (with conjunctival infestation) (eyelid)
  • Swelling (of) R60.9
    ICD-10-CM Diagnosis Code R60.9

    Edema, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Fluid retention NOS
    • Calabar B74.3

ICD-10-CM Codes Adjacent To B74.3
B73.0 Onchocerciasis with eye disease
B73.00 Onchocerciasis with eye involvement, unspecified
B73.01 Onchocerciasis with endophthalmitis
B73.02 Onchocerciasis with glaucoma
B73.09 Onchocerciasis with other eye involvement
B73.1 Onchocerciasis without eye disease
B74 Filariasis
B74.0 Filariasis due to Wuchereria bancrofti
B74.1 Filariasis due to Brugia malayi
B74.2 Filariasis due to Brugia timori
B74.3 Loiasis
B74.4 Mansonelliasis
B74.8 Other filariases
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

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