R90 ICD-10-CM Code: Abnormal findings on diagnostic imaging of central nervous system
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
R90Abnormal findings on diagnostic imaging of central nervous system
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where R90 sits
- 1
Chapter 18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
- 2
Section
Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)
- 3
Category R90
Abnormal findings on diagnostic imaging of central nervous system
- 4
Code R90
Abnormal findings on diagnostic imaging of central nervous system
More specific choices
Codes under R90
R90 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for R90.
Code first
No “code first” instruction is listed for R90.
Use additional code
No “use additional code” instruction is listed for R90.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for R90.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for R90.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code R90 mean?
R90 is the FY 2027 U.S. ICD-10-CM code for “Abnormal findings on diagnostic imaging of central nervous system.”
Is R90 a billable or specific ICD-10-CM code?
No. R90 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is R90 located in ICD-10-CM?
R90 is listed in Chapter 18, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), within Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94) (R90–R94), under category R90, Abnormal findings on diagnostic imaging of central nervous system.
What coding notes are listed for R90?
No inclusion terms are listed for R90 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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