2026 ICD-10-CM Diagnosis Code R76.12Nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis
ICD-10-CM Codes›R00–R99›R70-R79›R76
- Billable — Valid for Submission
- Not Chronic
R76.12 is a billable ICD-10-CM diagnosis code for nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 177 through 179. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Abnormal findings without diagnosis.
Code Identity
Code Classification
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Nonspecific reaction to QuantiFERON-TB test (QFT) without active tuberculosis
Type 1 Excludes
- nonspecific reaction to tuberculin skin test without active tuberculosis R76.11
- positive tuberculin skin test R76.11
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Reaction - See Also: Disorder;
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Reaction
- nonspecific
- to
- cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis
- Reaction
- nonspecific
- to
- QuantiFERON-TB test (QFT) without active tuberculosis
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Convert R76.12 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About R76.12Overview
Is R76.12 (Nonspecific reaction to test for tuberculosis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does R76.12 group to?
When nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 177, 178, 179, with relative weights from 0.7550 to 1.5627 depending on complications. Higher weights mean higher Medicare reimbursement.
Can R76.12 be a principal diagnosis?
Use it with care. This is a symptom code, so once a definitive diagnosis explaining the nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis is established, that condition takes the principal position instead.
What is the ICD-9 equivalent of R76.12?
Under the General Equivalence Mappings, nonspecific reaction to cell mediated immunity measurement of gamma interferon antigen response without active tuberculosis converts to ICD-9-CM 795.52 (nonsp rea gma interferon). The mapping is a direct match.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
