2027 ICD-10-CM Diagnosis Code R80.9Proteinuria, unspecified
ICD-10-CM Codes›R00–R99›R80-R82›R80
- Billable — Valid for Submission
- Not Chronic
R80.9 is a billable ICD-10-CM diagnosis code for proteinuria, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 695 through 696. 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 Proteinuria.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- AD7c neuronal thread protein concentration in urine above reference range
- Albuminuria
- Asymptomatic proteinuria
- Chronic kidney disease stage 1 with proteinuria
- Chronic kidney disease stage 2 with proteinuria
- Chronic kidney disease stage 3 with proteinuria
- Chronic kidney disease stage 3A
- Chronic kidney disease stage 3A with proteinuria
- Chronic kidney disease stage 3B
- Chronic kidney disease stage 3B with proteinuria
- Chronic kidney disease stage 4 with proteinuria
- Chronic kidney disease stage 5 with proteinuria
- CKD G1A2 - chronic kidney disease with glomerular filtration rate category G1 and albuminuria category A2
- CKD G1A3 - chronic kidney disease with glomerular filtration rate category G1 and albuminuria category A3
- CKD G2A2 - chronic kidney disease with glomerular filtration rate category G2 and albuminuria category A2
- CKD G2A3 - chronic kidney disease with glomerular filtration rate category G2 and albuminuria category A3
- CKD G3aA2 - chronic kidney disease with glomerular filtration rate category G3a and albuminuria category A2
- CKD G3aA3 - chronic kidney disease with glomerular filtration rate category G3a and albuminuria category A3
- CKD G3bA2 - chronic kidney disease with glomerular filtration rate category G3b and albuminuria category A2
- CKD G3bA3 - chronic kidney disease with glomerular filtration rate category G3b and albuminuria category A3
- CKD G4A2 - chronic kidney disease with glomerular filtration rate category G4 and albuminuria category A2
- CKD G4A3 - chronic kidney disease with glomerular filtration rate category G4 and albuminuria category A3
- CKD G5A2 - chronic kidney disease with glomerular filtration rate category G5 and albuminuria category A2
- CKD G5A3 - chronic kidney disease with glomerular filtration rate category G5 and albuminuria category A3
- Essential proteinuria
- Grade A1 albuminuria
- Grade A2 albuminuria
- Grade A3 albuminuria
- Hypertension with albuminuria
- Macroalbuminuric nephropathy due to diabetes mellitus
- Microalbuminuria
- Microalbuminuria due to type 1 diabetes mellitus
- Microalbuminuria due to type 2 diabetes mellitus
- Microalbuminuric diabetic nephropathy
- Protein concentration, dipstick - finding
- Protein electrophoresis outside reference range
- Proteinuria
- Proteinuria due to type 1 diabetes mellitus
- Proteinuria due to type 2 diabetes mellitus
- Proteinuria of adolescence
- Proteinuria of undiagnosed cause
- Recurrent proteinuria
- Residual proteinuria
- True proteinuria
- Urine microalbumin detected
- Urine protein electrophoresis outside reference range
- Urine protein outside reference range
- Urine protein test = +
- Urine protein test = ++
- Urine protein test = +++
- Urine protein test = ++++
- Urine protein test = trace
- Urine protein within reference range
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to R80.9: its own notes plus those printed at R80, block R80-R82, and Chapter 18. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Albuminuria NOS
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Notes
General instructions on how these codes are used.
- This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
- Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
- The conditions and signs or symptoms included in categories R00-R94 consist of:
- (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
- (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
- (c) provisional diagnosis in a patient who failed to return for further investigation or care;
- (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
- (e) cases in which a more precise diagnosis was not available for any other reason;
- (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name R80.9, its category, or a range that includes it.
Excludes2 2
These codes carry an Excludes2 note naming R80.9: its condition is not part of those codes, and both may be reported when the patient has both.
- N39 Other disorders of urinary systemproteinuria NOS (R80.-) names R80.-, which includes this code
- Block R83-R89 Abnormal findings on examination of other body fluids, substances and tissues, without diagnosis
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Albuminuria, albuminuric (acute) (chronic) (subacute) See Also: Proteinuria; R80.9
Microalbuminuria R80.9
Proteinuria R80.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Proteinuria
the presence of proteins in the urine, an indicator of kidney diseases.
Patient EducationClinical
Urine and Urination
Your kidneys make urine by filtering wastes and extra water from your blood. The waste is called urea. Your blood carries it to the kidneys. From the kidneys, urine travels down two thin tubes called ureters to the bladder. The bladder stores urine until you are ready to urinate.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert R80.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About R80.9Overview
What is the ICD-10 code for proteinuria, unspecified?
The ICD-10-CM code for proteinuria, unspecified is R80.9 (sometimes written as R809). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is R80.9 (Proteinuria) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report proteinuria, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does R80.9 group to?
When proteinuria, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 696, 695, with relative weights from 0.6677 to 1.1136 depending on complications. Higher weights mean higher Medicare reimbursement.
Can R80.9 be a principal diagnosis?
Use it with care. This is a symptom code, so once a definitive diagnosis explaining the proteinuria, unspecified is established, that condition takes the principal position instead.
Can R80.9 be reported with a code from O12.1?
Not as a rule. The Excludes1 note at R80, which applies to R80.9, lists "gestational proteinuria (O12.1-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
