R10.8A1 Right flank tenderness

Billable ICD-10-CM code, FY2026.

Applies from R10 Abdominal and pelvic pain

Excludes1 (never code together)

• renal colic (N23)

Excludes2 (not included here)

• costovertebral (angle) tenderness (R39.85)
• dorsalgia (M54.-)
• flatulence and related conditions (R14.-)

MS-DRG index

Defines the logic of DRG(s) 391-392 in MDC 06.

Code annotations containing back-references to R10.8A1

Back-references to R10

• Type 2 Excludes: G89 Pain, not elsewhere classified ("abdomen pain (R10.-)")
• Type 2 Excludes: R39.85 Costovertebral (angle) tenderness ("abdominal and pelvic pain (R10.-)")
• Type 1 Excludes: R52 Pain, unspecified ("abdomen pain (R10.-)")

Diagnosis Index entries for R10.8A1

• Tenderness, abdominal › flank › right

Nearby codes

• R10.829 Rebound abdominal tenderness, unspecified site
• R10.83 Colic
• R10.84 Generalized abdominal pain
• R10.85 Abdominal pain of multiple sites
• R10.8A Flank tenderness
• R10.8A1 Right flank tenderness (this code)
• R10.8A2 Left flank tenderness
• R10.8A3 Suprapubic tenderness
• R10.8A9 Flank tenderness, unspecified
• R10.9 Unspecified abdominal pain
• R10.A Pain localized to flank