ICD-10-CM 2027
ICD-10 code for rebound tenderness
From the official ICD-10-CM alphabetic index entry “Tenderness, abdominal › rebound”. Page updated September 29, 2026.
About coding rebound tenderness
The ICD-10-CM code for rebound tenderness is R10.829 (Rebound abdominal tenderness, unspecified site). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R10.829.
Within R10.82, choose R10.829 (unspecified site) only when documentation doesn't support a more specific option: right upper quadrant rebound abdominal tenderness (R10.821), left upper quadrant rebound abdominal tenderness (R10.822), right lower quadrant rebound abdominal tenderness (R10.823), left lower quadrant rebound abdominal tenderness (R10.824), periumbilic rebound abdominal tenderness (R10.825), epigastric rebound abdominal tenderness (R10.826) and generalized rebound abdominal tenderness (R10.827).
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.
More specific rebound tenderness codes (official index)
- epigastric R10.826 — Epigastric rebound abdominal tenderness
- generalized R10.827 — Generalized rebound abdominal tenderness
- left lower quadrant R10.824 — Left lower quadrant rebound abdominal tenderness
- left upper quadrant R10.822 — Left upper quadrant rebound abdominal tenderness
- periumbilic R10.825 — Periumbilic rebound abdominal tenderness
- right lower quadrant R10.823 — Right lower quadrant rebound abdominal tenderness
- right upper quadrant R10.821 — Right upper quadrant rebound abdominal tenderness
Common questions about rebound tenderness ICD-10 codes
What is the ICD-10 code for rebound tenderness?
- R10.829 — Rebound abdominal tenderness, unspecified site. More specific codes apply when the documentation supports them: R10.826, R10.827, R10.824, R10.822 and others below.
What is the ICD-10 code for epigastric rebound tenderness?
- R10.826 — Epigastric rebound abdominal tenderness.
What is the ICD-10 code for generalized rebound tenderness?
- R10.827 — Generalized rebound abdominal tenderness.
What is the ICD-10 code for left lower quadrant rebound tenderness?
- R10.824 — Left lower quadrant rebound abdominal tenderness.
What is the ICD-10 code for left upper quadrant rebound tenderness?
- R10.822 — Left upper quadrant rebound abdominal tenderness.
What is the ICD-10 code for periumbilic rebound tenderness?
- R10.825 — Periumbilic rebound abdominal tenderness.
What is the ICD-10 code for right lower quadrant rebound tenderness?
- R10.823 — Right lower quadrant rebound abdominal tenderness.
Is R10.829 billable?
- Yes. R10.829 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R10.829 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R10.829 as a principal diagnosis.
Is R10.829 a CC or MCC?
- No. R10.829 is neither a CC nor an MCC under MS-DRG v44.0.