ICD-10-CM 2027
ICD-10 code for LAD
From the official ICD-10-CM alphabetic index entry “LAD (leukocyte adhesion deficiency) (LAD-I) (LAD-II) (LAD-III)”. Page updated September 29, 2026.
About coding LAD
The ICD-10-CM code for LAD is D71.1 (Leukocyte adhesion deficiency).
Within D71 (functional disorders of polymorphonuclear neutrophils), D71.1 is specifically for Leukocyte adhesion deficiency. Related codes cover other functional disorders of polymorphonuclear neutrophils (D71.8) and unspecified (D71.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 808 (Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders with MCC, relative weight 2.1705), DRG 809 (Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders with CC, relative weight 1.2262) and DRG 810 (Major Hematological and Immunological Diagnoses Except Sickle Cell Crisis and Coagulation Disorders without CC/MCC, relative weight 1.075), in MDC 16 (Diseases and Disorders of the Blood and Blood Forming Organs and Immunological Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about LAD ICD-10 codes
What is the ICD-10 code for LAD?
- D71.1 — Leukocyte adhesion deficiency.
Is D71.1 billable?
- Yes. D71.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can D71.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict D71.1 as a principal diagnosis.
Is D71.1 a CC or MCC?
- No. D71.1 is neither a CC nor an MCC under MS-DRG v44.0.