ICD-10-CM 2027
ICD-10 code for left upper quadrant tenderness
From the official ICD-10-CM alphabetic index entry “Tenderness, abdominal › left upper quadrant”. Page updated September 29, 2026.
About coding left upper quadrant tenderness
The ICD-10-CM code for left upper quadrant tenderness is R10.812 (Left upper quadrant abdominal tenderness).
Within R10.81 (abdominal tenderness), R10.812 is specifically for left upper quadrant abdominal tenderness. Related codes cover right upper quadrant abdominal tenderness (R10.811), right lower quadrant abdominal tenderness (R10.813), left lower quadrant abdominal tenderness (R10.814), periumbilic abdominal tenderness (R10.815), epigastric abdominal tenderness (R10.816), generalized abdominal tenderness (R10.817) and unspecified site (R10.819).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 391 (Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCC, relative weight 1.2392) and DRG 392 (Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCC, relative weight 0.7645), in MDC 06 (Diseases and Disorders of the Digestive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about left upper quadrant tenderness ICD-10 codes
What is the ICD-10 code for left upper quadrant tenderness?
- R10.812 — Left upper quadrant abdominal tenderness.
Is R10.812 billable?
- Yes. R10.812 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R10.812 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R10.812 as a principal diagnosis.
Is R10.812 a CC or MCC?
- No. R10.812 is neither a CC nor an MCC under MS-DRG v44.0.