ICD-10-CM
D81.9 - Combined immunodeficiency, unspecified
Code
D81.9 - Combined immunodeficiency, unspecified
[Billable]
[Billable]
Includes
- Severe combined immunodeficiency disorder [SCID] NOS
Code Tree
D50-D89 - Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
- D80-D89 - Certain disorders involving the immune mechanism
- D81 - Combined immunodeficiencies
- D81.0 - Severe combined immunodeficiency [SCID] with reticular dysgenesis
- D81.1 - Severe combined immunodeficiency [SCID] with low T- and B-cell numbers
- D81.2 - Severe combined immunodeficiency [SCID] with low or normal B-cell numbers
- D81.3 - Adenosine deaminase [ADA] deficiency
- D81.4 - Nezelof's syndrome
- D81.5 - Purine nucleoside phosphorylase [PNP] deficiency
- D81.6 - Major histocompatibility complex class I deficiency
- D81.7 - Major histocompatibility complex class II deficiency
- D81.8 - Other combined immunodeficiencies
- D81.9 - Combined immunodeficiency, unspecified
- D81 - Combined immunodeficiencies
Citation
"D81.9 - Combined Immunodeficiency, Unspecified." ICD-10-CM, 10th ed., Centers for Medicare and Medicaid Services and the National Center for Health Statistics, 2026. www.unboundmedicine.com/icd/view/ICD-10-CM/870912/all/D81_9___Combined_immunodeficiency__unspecified.
D81.9 - Combined immunodeficiency, unspecified. ICD-10-CM. Centers for Medicare and Medicaid Services and the National Center for Health Statistics; 2026. https://www.unboundmedicine.com/icd/view/ICD-10-CM/870912/all/D81_9___Combined_immunodeficiency__unspecified. Accessed June 11, 2026.
D81.9 - Combined immunodeficiency, unspecified. (2026). In ICD-10-CM (10th ed.). Centers for Medicare and Medicaid Services and the National Center for Health Statistics. https://www.unboundmedicine.com/icd/view/ICD-10-CM/870912/all/D81_9___Combined_immunodeficiency__unspecified
D81.9 - Combined Immunodeficiency, Unspecified [Internet]. In: ICD-10-CM. Centers for Medicare and Medicaid Services and the National Center for Health Statistics; 2026. [cited 2026 June 11]. Available from: https://www.unboundmedicine.com/icd/view/ICD-10-CM/870912/all/D81_9___Combined_immunodeficiency__unspecified.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - D81.9 - Combined immunodeficiency, unspecified
ID - 870912
BT - ICD-10-CM
UR - https://www.unboundmedicine.com/icd/view/ICD-10-CM/870912/all/D81_9___Combined_immunodeficiency__unspecified
PB - Centers for Medicare and Medicaid Services and the National Center for Health Statistics
ET - 10
DB - ICD-10-CM
DP - Unbound Medicine
ER -
