ICD-10-CM 2027
ICD-10 code for Nonconclusive test hiv
From the official ICD-10-CM alphabetic index entry “HIV › nonconclusive test (in infants)”. Page updated September 29, 2026.
About coding Nonconclusive test hiv
The ICD-10-CM code for Nonconclusive test hiv is R75 (Inconclusive laboratory evidence of human immunodeficiency virus [HIV]).
Don't report R75 together with the conditions in its Excludes1 note: asymptomatic human immunodeficiency virus [HIV] infection status (Z21) and human immunodeficiency virus [HIV] disease (B20).
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 814 (Reticuloendothelial and Immunity Disorders with MCC, relative weight 2.0729), DRG 815 (Reticuloendothelial and Immunity Disorders with CC, relative weight 1.0444) and DRG 816 (Reticuloendothelial and Immunity Disorders without CC/MCC, relative weight 0.7381), 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.
Don't confuse with (Excludes1 for R75)
Common questions about Nonconclusive test hiv ICD-10 codes
What is the ICD-10 code for Nonconclusive test hiv?
- R75 — Inconclusive laboratory evidence of human immunodeficiency virus [HIV].
Is R75 billable?
- Yes. R75 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R75 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R75 as a principal diagnosis.
Is R75 a CC or MCC?
- No. R75 is neither a CC nor an MCC under MS-DRG v44.0.