D81.4 — Nezelof's syndrome
D81.4 is a billable, specific ICD-10-CM code for nezelof's syndrome. It is valid for submission on a claim.
Risk adjustment
D81.4 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 115 Specified Immunodeficiencies and White Blood Cell Disorders0.565 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
D81.4 is named in 24 Medicare coverage policies — 24 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A55717Billing and Coding: Lab: Flow Cytometry
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A56464Billing and Coding: Flow Cytometry
- A56638Billing and Coding: Gastrointestinal Pathogen (GIP) Panels Utilizing Multiplex Nucleic Acid Amplification Techniques (NAATs)
How D81.4 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 D81.4.
- Nezelof's syndrome(pure alymphocytosis)
- Syndrome›Nezelof's
Related codes at this level
Codes that share D81. If D81.4 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
- D81.5Purine nucleoside phosphorylase [PNP] deficiency
- D81.6Major histocompatibility complex class I deficiency
- D81.7Major histocompatibility complex class II deficiency
- D81.8Other combined immunodeficiencies
- D81.9Combined immunodeficiency, unspecified
Questions about D81.4
- Is D81.4 a billable ICD-10-CM code?
- Yes. D81.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does D81.4 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).