D81.8
D81.8 — Other combined immunodeficiencies
Non-billable headerICD-10-CM
D81.8 is a non-billable header ICD-10-CM code for other combined immunodeficiencies. It cannot be billed on its own: choose one of the more specific child codes below.
Risk adjustment
D81.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead D81.8
3 child codes. Green means billable.
Related codes at this level
Codes that share D81. If D81.8 is not quite right, the correct code is usually one of these.
- 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
- D81.4Nezelof's syndrome
- D81.5Purine nucleoside phosphorylase [PNP] deficiency
- D81.6Major histocompatibility complex class I deficiency
- D81.7Major histocompatibility complex class II deficiency
- D81.9Combined immunodeficiency, unspecified
Questions about D81.8
- Is D81.8 a billable ICD-10-CM code?
- No. D81.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does D81.8 sit in the tabular list?
- Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89), in the block Certain disorders involving the immune mechanism (D80-D89).