R93.421 – Abnormal radiologic findings on diagnostic imaging of right kidney

ICD-10-CM 2027 diagnosis code · Abnormal findings on diagnostic imaging and in function studies, without diagnosis

Billable code

ICD-10-CM code R93.421

Code: R93.421 (claims format: R93421)
Description: Abnormal radiologic findings on diagnostic imaging of right kidney
Short description: Abnormal radiologic findings on dx imaging of r kidney
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: R90-R94 Abnormal findings on diagnostic imaging and in function studies, without diagnosis
Parent codes: R93 › R93.4 › R93.42

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

R93.4 – Abnormal findings on diagnostic imaging of urinary organs

Excludes2 (not included here):

hypertrophy of kidney (N28.81)

Block R90-R94

Includes:

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):

abnormal findings on antenatal screening of mother (O28.-)
diagnostic abnormal findings classified elsewhere - see Alphabetical Index

Related codes in R93.42

Frequently asked questions

What is ICD-10 code R93.421?

R93.421 is the ICD-10-CM code for abnormal radiologic findings on diagnostic imaging of right kidney, in the block R90-R94 (Abnormal findings on diagnostic imaging and in function studies, without diagnosis).

Is R93.421 a billable code?

Yes. R93.421 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does R93.421 belong to?

It belongs to category R93 – Abnormal findings on diagnostic imaging of other body structures.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.