D84.821

Immunodeficiency due to drugs

Billable / specific

D84.821 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Immunodeficiency due to (current or past) medication

Includes (from D84)

  • defects in the complement system
  • immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
  • sarcoidosis

Excludes1

Not coded here — never report together with this code.

  • autoimmune disease (systemic) NOS (M35.9) (from D84)
  • functional disorders of polymorphonuclear neutrophils (D71-) (from D84)

Excludes2

Not included here — may be reported together when both conditions exist.

  • autoimmune disease (systemic) NOS (M35.9) (from D84)
  • certain conditions originating in the perinatal period (P00-P96) (from D84)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from D84)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) (from D84)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from D84)
  • human immunodeficiency virus [HIV] disease (B20) (from D84)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from D84)
  • neoplasms (C00-D49) (from D84)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from D84)
  • human immunodeficiency virus [HIV] disease (B20) (from D84)

Use additional code

Add a code to identify the following, if applicable.

  • code for adverse effect if applicable, to identify adverse effect of drug (T36-T50 with fifth or six character 5)
  • code, if applicable, for associated long term (current) drug therapy drug or medication such as:
  • long term (current) drug therapy systemic steroids (Z79.52)
  • other long term (current) drug therapy (Z79.899)

Also known as

  • Immunodeficiency due to (current or past) medication
  • Immunodeficiency, due to drugs
  • Immunodeficiency, due to medication

Parent code

  • D84.82Immunodeficiency due to drugs and external causesHeader

Related codes

  • D84.822Immunodeficiency due to external causesBillable

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