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  6. 2026 ICD-10-CM Code R10.A

2026 ICD-10-CM Diagnosis Code R10.A

Pain localized to flank

ICD-10-CM Code:
R10.A
ICD-10 Code for:
Pain localized to flank
Is Billable?
Not Valid for Submission
Code Navigator:

R10.A is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of pain localized to flank. The code is not specific and is NOT valid for the year 2026 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

Specific Coding Applicable to Pain localized to flank

Non-specific codes like R10.A require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for pain localized to flank:

  • Use R10.A0 for Flank pain, unspecified side - BILLABLE CODE

  • Use R10.A1 for Flank pain, right side - BILLABLE CODE

  • Use R10.A2 for Flank pain, left side - BILLABLE CODE

  • Use R10.A3 for Flank pain, bilateral - BILLABLE CODE

Code Classification

  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    R00–R99
    • Symptoms and signs involving the digestive system and abdomen
      R10-R19
      • Abdominal and pelvic pain
        R10

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Lateral abdomen pain
  • Lateral flank pain
  • Latus region pain

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • pain localized to other parts of lower abdomen R10.3
  • pain localized to upper abdomen R10.1

Code History

  • FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026