D81.39 — Other adenosine deaminase deficiency
D81.39 is a billable, specific ICD-10-CM code for other adenosine deaminase deficiency. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Adenosine deaminase [ADA] deficiency type 1, NOS
- Adenosine deaminase [ADA] deficiency type 1, without SCID
- Adenosine deaminase [ADA] deficiency type 1, without severe combined immunodeficiency
- Partial ADA deficiency (type 1)
- Partial adenosine deaminase deficiency (type 1)
Risk adjustment
D81.39 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 114 Common Variable and Combined Immunodeficiencies2.262 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
D81.39 is named in 13 Medicare coverage policies — 13 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57954Billing and Coding: Routine Foot Care
- A58575Billing and Coding: Respiratory Pathogen Panel Testing
- A58577Billing and Coding: Respiratory Pathogen Panel Testing
- A58710Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
How D81.39 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to D81.39.
- Deficiency, deficient›adenosine deaminase›partial(type 1)
- Deficiency, deficient›adenosine deaminase›specified NEC
- Deficiency, deficient›adenosine deaminase›type 1(without SCID) (without severe combined immunodeficiency)
Related codes at this level
Codes that share D81.3. If D81.39 is not quite right, the correct code is usually one of these.
Questions about D81.39
- Is D81.39 a billable ICD-10-CM code?
- Yes. D81.39 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D81.39 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).