Is ICD-10-CM code D82 billable?

No, D82 (Immunodeficiency associated with other major defects) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code D82 belong to?

D82 belongs to Chapter 3 of the ICD-10-CM tabular list: D50–D89 (Diseases of the Blood and Blood-Forming Organs).

D82Not billable, use a more specific code below

Immunodeficiency associated with other major defects

In Certain disorders involving the immune mechanism (D80-D89), chapter 3: Diseases of the Blood and Blood-Forming Organs

7 billable codes under D82: 2 are a CC; 2 map to HCC 115 (Specified Immunodeficiencies and White Blood Cell Disorders).A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

Instructional notes

Excludes1: not coded here, use a different code

ataxia telangiectasia [Louis-Bar] (G11.3)

Also applies, from Certain disorders involving the immune mechanism (D80-D89)

These notes sit on D80-D89 and apply to every code under it, including D82.

Includes: conditions that are coded here

defects in the complement system
immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
sarcoidosis

Excludes1: not coded here, use a different code

autoimmune disease (systemic) NOS (M35.9)
functional disorders of polymorphonuclear neutrophils (D71-)

Excludes2: not included here, code separately if applicable

human immunodeficiency virus [HIV] disease (B20)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

There are no chapter-specific rules for Chapter 3 yet, so the general rules in Section I.B apply.

Read Section I.C.3 (page 39)

All codes under D82

D82 can't be used on a claim. Pick a billable code below; grey headings group them.

D82 MS-DRGs

As the principal diagnosis, the billable codes under D82 group to MS-DRG 814, 815, 816, 808, 809, or 810 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 814 Reticuloendothelial and Immunity Disorders with MCC (5 of 7 codes)
DRG 815 Reticuloendothelial and Immunity Disorders with CC (5 of 7 codes)
DRG 816 Reticuloendothelial and Immunity Disorders without CC/MCC (5 of 7 codes)
DRG 808 Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders with MCC (2 of 7 codes)
DRG 809 Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders with CC (2 of 7 codes)
DRG 810 Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders without CC/MCC (2 of 7 codes)

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.