R75 — Inconclusive laboratory evidence of human immunodeficiency virus [HIV]
Is R75 billable?
Yes — R75 is billable for FY2027. R75 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. R75 may be submitted for encounters from October 1, 2026 through September 30, 2027.
R75 at a glance
| Code | R75 |
|---|---|
| Description | Inconclusive laboratory evidence of human immunodeficiency virus [HIV] |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does R75 group to?
R75 sits in MDC 16 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 814Reticuloendothelial and Immunity Disorders with MCCmedical
- 815Reticuloendothelial and Immunity Disorders with CCmedical
- 816Reticuloendothelial and Immunity Disorders without CC/MCCmedical
How is R75 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to R75. They show the wording a clinician may have documented, which often differs from the Tabular description.
- HIV › laboratory evidence
- HIV › nonconclusive test
- Positive › test, human immunodeficiency virus
- Human › immunodeficiency virus › laboratory evidence
- Test, tests, testing › HIV › nonconclusive (for)
Excludes1 — never code together
The conditions below can never be reported together with R75 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Inclusion terms
Alternative wording in documentation that is classified to R75.
- Nonconclusive HIV-test finding in infants
Excludes2 — not included here — inherited from Chapter 18
The conditions below are not part of R75, but a patient may have both at the same time. When documentation supports it, R75 and the excluded code may both be reported.
Excludes2 — not included here — inherited from R70-R79
The conditions below are not part of R75, but a patient may have both at the same time. When documentation supports it, R75 and the excluded code may both be reported.
- abnormal findings on antenatal screening of mother (O28.-)
- abnormalities of lipids (E78.-)
- abnormalities of platelets and thrombocytes (D69.-)
- abnormalities of white blood cells classified elsewhere (D70-D72)
- coagulation hemorrhagic disorders (D65-D68)
- diagnostic abnormal findings classified elsewhere - see Alphabetical Index
- hemorrhagic and hematological disorders of newborn (P50-P61)
How long has R75 existed?
R75 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with R75?
ICD-10-CM declares these codes mutually exclusive with R75 — exactly one of each pair can be correct for a given encounter.