2021 ICD-10-CM Diagnosis Code D84.822

Immunodeficiency due to external causes

    2021 - New Code Billable/Specific Code
  • D84.822 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • ICD-10-CM D84.822 is a new 2021 ICD-10-CM code that became effective on October 1, 2020.
  • This is the American ICD-10-CM version of D84.822 - other international versions of ICD-10 D84.822 may differ.
Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code for external cause such as:
  • exposure to ionizing radiation (
    ICD-10-CM Diagnosis Code W88

    Exposure to ionizing radiation

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • exposure to sunlight (X32)
    W88
    )
Code Also
Code Also Help
A code also note instructs that 2 codes may be required to fully describe a condition but the sequencing of the two codes is discretionary, depending on the severity of the conditions and the reason for the encounter.
  • , if applicable, radiological procedure and radiotherapy (
    ICD-10-CM Diagnosis Code Y84.2

    Radiological procedure and radiotherapy as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Y84.2
    )
The following code(s) above D84.822 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 D84.822:
  • D50-D89
    2021 ICD-10-CM Range D50-D89

    Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

    Type 2 Excludes
    • autoimmune disease (systemic) NOS (M35.9)
    • certain conditions originating in the perinatal period (P00-P96)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • human immunodeficiency virus [HIV] disease (B20)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
  • D80-D89
    2021 ICD-10-CM Range D80-D89

    Certain disorders involving the immune mechanism

    Includes
    • defects in the complement system
    • immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
    • sarcoidosis
    Type 1 Excludes
    • autoimmune disease (systemic) NOS (M35.9)
    • functional disorders of polymorphonuclear neutrophils (D71)
    • human immunodeficiency virus [HIV] disease (B20)
    Certain disorders involving the immune mechanism
ICD-10-CM D84.822 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 814 Reticuloendothelial and immunity disorders with mcc
  • 815 Reticuloendothelial and immunity disorders with cc
  • 816 Reticuloendothelial and immunity disorders without cc/mcc
Code History
  • 2021 (effective 10/1/2020): New code

Diagnosis Index entries containing back-references to D84.822:
  • Immunodeficiency D84.9
    ICD-10-CM Diagnosis Code D84.9

    Immunodeficiency, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Immunocompromised NOS
    • Immunodeficient NOS
    • Immunosuppressed NOS
    • due to
      • external causes D84.822

ICD-10-CM Codes Adjacent To D84.822
D83.2 Common variable immunodeficiency with autoantibodies to B- or T-cells
D83.8 Other common variable immunodeficiencies
D83.9 Common variable immunodeficiency, unspecified
D84 Other immunodeficiencies
D84.0 Lymphocyte function antigen-1 [LFA-1] defect
D84.1 Defects in the complement system
D84.8 Other specified immunodeficiencies
D84.81 Immunodeficiency due to conditions classified elsewhere
D84.82 Immunodeficiency due to drugs and external causes
D84.821 Immunodeficiency due to drugs
D84.822 Immunodeficiency due to external causes
D84.89 Other immunodeficiencies
D84.9 Immunodeficiency, unspecified
D86 Sarcoidosis
D86.0 Sarcoidosis of lung
D86.1 Sarcoidosis of lymph nodes
D86.2 Sarcoidosis of lung with sarcoidosis of lymph nodes
D86.3 Sarcoidosis of skin
D86.8 Sarcoidosis of other sites
D86.81 Sarcoid meningitis
D86.82 Multiple cranial nerve palsies in sarcoidosis

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