D81

Non-Billable

Combined immunodeficiencies

D81 should not be used for reimbursement purposes as there are multiple sub-diagnoses that fall under this code. Please refer to the sub-diagnoses below.

Related Diagnoses

  • D81.0Severe combined immunodeficiency [SCID] with reticular dysgenesis
  • D81.1Severe combined immunodeficiency [SCID] with low T- and B-cell numbers
  • D81.2Severe combined immunodeficiency [SCID] with low or normal B-cell numbers
  • D81.3Adenosine deaminase [ADA] deficiency
    • D81.30Adenosine deaminase deficiency, unspecified
    • D81.31Severe combined immunodeficiency due to adenosine deaminase deficiency
    • D81.32Adenosine deaminase 2 deficiency
    • D81.39Other adenosine deaminase deficiency
  • D81.4Nezelof's syndrome
  • D81.5Purine nucleoside phosphorylase [PNP] deficiency
  • D81.6Major histocompatibility complex class I deficiency
  • D81.7Major histocompatibility complex class II deficiency
  • D81.8Other combined immunodeficiencies
    • D81.81Biotin-dependent carboxylase deficiency
      • D81.810Biotinidase deficiency
      • D81.818Other biotin-dependent carboxylase deficiency
      • D81.819Biotin-dependent carboxylase deficiency, unspecified
    • D81.82Activated Phosphoinositide 3-kinase Delta Syndrome [APDS]
    • D81.89Other combined immunodeficiencies
  • D81.9Combined immunodeficiency, unspecified
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