2027 ICD-10-CM Diagnosis Code R93.429Abnormal radiologic findings on diagnostic imaging of unspecified kidney

ICD-10-CM Codes›R00–R99›R90-R94›R93

ICD-10-CM R93.429
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

R93.429 is a billable ICD-10-CM diagnosis code for abnormal radiologic findings on diagnostic imaging of unspecified kidney. 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. Coders also document this condition as angiography of renal artery abnormal. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Abnormal findings without diagnosis.

Code Identity

ICD-10-CM Code
R93.429
Billable Status
Yes — Valid for Submission
Code Describes
Abnormal radiologic findings on diagnostic imaging of unspecified kidney
Short Description
Abnormal radiologic findings on dx imaging of unsp kidney
Parent Code
R93.42
Abnormal radiologic findings on diagnostic imaging of kidney

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR90-R94Abnormal findings on diagnostic imaging and in function studies, without diagnosis
CategoryR93Abnormal findings on diagnostic imaging of other body structures
This CodeR93.429Abnormal radiologic findings on diagnostic imaging of unspecified kidney

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Angiography of renal artery abnormal
  • Imaging of urinary system abnormal
  • Nuclear medicine imaging abnormal
  • Pyelography with intravenous contrast abnormal
  • Radionuclide static scan of kidney abnormal
  • Ultrasonography of abdomen abnormal
  • Ultrasonography of kidney abnormal

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to R93.429: its own notes plus those printed at R93.4, block R90-R94, and Chapter 18. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis applies to 64 codes
  • nonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan]
  • nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR]
  • nonspecific abnormal findings on diagnostic imaging by positron emission tomography [PET scan]
  • nonspecific abnormal findings on diagnostic imaging by thermography
  • nonspecific abnormal findings on diagnostic imaging by ultrasound [echogram]
  • nonspecific abnormal findings on diagnostic imaging by X-ray examination

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis applies to 64 codes
  • abnormal findings on antenatal screening of mother (O28.-)
  • diagnostic abnormal findings classified elsewhere - see Alphabetical Index

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.

From R93.4 Abnormal findings on diagnostic imaging of urinary organs applies to 5 codes
  • hypertrophy of kidney (N28.81)
From Chapter 18 (R00-R99) Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified applies to 774 codes
  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)

Notes

General instructions on how these codes are used.

From Chapter 18 (R00-R99) Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified applies to 774 codes
  • 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 R93.429, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming R93.429: they are not reported together with it, unless the two conditions are unrelated.

  • R22 Localized swelling, mass and lump of skin and subcutaneous tissue
    abnormal findings on diagnostic imaging (R90-R93) names R90-R93, which includes this code

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR SYM017
Abnormal findings without diagnosis
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert R93.429 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
793.5 Nonsp abn find-gu organs
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement R93.429 replaces the following previously assigned code(s):

  • R93.4 - Abnormal findings on diagnostic imaging of urinary organs
FY 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About R93.429Overview

Is R93.429 (Abnormal radiologic findings on diagnostic imaging of kidney) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report abnormal radiologic findings on diagnostic imaging of unspecified kidney on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does R93.429 group to?

When abnormal radiologic findings on diagnostic imaging of unspecified kidney 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 R93.429 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the abnormal radiologic findings on diagnostic imaging of unspecified kidney is established, that condition takes the principal position instead.

Can R93.429 be reported with a code from O28?

Not as a rule. The Excludes1 note at block R90-R94, which applies to R93.429, lists "abnormal findings on antenatal screening of mother (O28.-)". 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).

What is the ICD-9 equivalent of R93.429?

Under the General Equivalence Mappings, abnormal radiologic findings on diagnostic imaging of unspecified kidney converts to ICD-9-CM 793.5 (nonsp abn find-gu organs). The mapping is approximate, so confirm the match fits the documentation.