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Home/Diagnosis/ICD-10 Coding for Flank Pain

ICD-10 Coding for Flank Pain

R10.9
N20.1

Complete ICD-10-CM coding and documentation guide for icd-10 coding for flank pain includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Side Pain
Renal Colic
Costovertebral Angle Pain
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Key Information: ICD-10 Coding for Flank Pain

Essential facts and insights about ICD-10 Coding for Flank Pain

Use ICD-10 code R10.9 for unspecified abdominal pain, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Unspecified abdominal pain

Billable Code
R10.9
Billable

Diagnostic Criteria

clinical:
  • • No definitive diagnosis from imaging or labs
coding:
  • • Flank pain documented without specific cause

Applicable To

  • • Flank pain when no specific cause is identified

Important Notes

  • • Ensure documentation specifies the absence of a definitive diagnosis to justify using R10.9.

Calculus of kidney

Billable Code
N20.1
Billable

Diagnostic Criteria

clinical:
  • • CT scan confirming kidney stone
  • • Presence of hematuria and costovertebral angle tenderness

Applicable To

  • • Renal colic

Important Notes

  • • Document imaging results and symptoms clearly to support this code.
Ancillary Codes

Additional codes that may be used with this diagnosis

G89.11

Acute pain due to trauma

Use when flank pain is due to trauma and imaging is negative for other causes.

N13.2

Hydronephrosis with renal and ureteral calculous obstruction

Use when there is obstruction due to the stone.

Frequently Asked Questions

What is the ICD-10 code for flank pain?

The ICD-10 code for unspecified flank pain is R10.9. If a specific cause like a kidney stone is identified, use N20.1.

When should R10.9 be used for flank pain?

Use R10.9 when flank pain is present but no specific diagnosis is confirmed by imaging or labs.

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