ICD-10-CM FY2027 diagnosis code

R83.3: Abnormal level of substances chiefly nonmedicinal as to source in cerebrospinal fluid

Billable codeValid for dates of service October 1, 2026 to September 30, 2027

R83.3 is a billable ICD-10-CM diagnosis code for abnormal level of substances chiefly nonmedicinal as to source in cerebrospinal fluid. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

R83.3 questions

Is R83.3 a billable code?

Yes. R83.3 is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.

What does R83.3 mean?

R83.3 is the ICD-10-CM code for Abnormal level of substances chiefly nonmedicinal as to source in cerebrospinal fluid. It is in chapter 18, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.