D84.822 – Immunodeficiency due to external causes
ICD-10-CM 2027 diagnosis code · Certain disorders involving the immune mechanism
ICD-10-CM code
D84.822
- Code
D84.822(claims format:D84822)- Description
- Immunodeficiency due to external causes
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 3. Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
- Block
- D80-D89 Certain disorders involving the immune mechanism
- Parent codes
- D84 › D84.8 › D84.82
Notes for D84.822
Use additional code:
- code for external cause such as:
- exposure to ionizing radiation (W88)
Code also:
- , if applicable, radiological procedure and radiotherapy (Y84.2)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block D80-D89
Includes:
- defects in the complement system
- immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
- sarcoidosis
Excludes1 (not coded here):
Excludes2 (not included here):
- human immunodeficiency virus [HIV] disease (B20)
Index terms for D84.822
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in D84.82
Frequently asked questions
What is ICD-10 code D84.822?
D84.822 is the ICD-10-CM code for immunodeficiency due to external causes, in the block D80-D89 (Certain disorders involving the immune mechanism).
Is D84.822 a billable code?
Yes. D84.822 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does D84.822 belong to?
It belongs to category D84 – Other immunodeficiencies.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.