ICD-10-CM 2027
ICD-10 code for abdominal rigid
From the official ICD-10-CM alphabetic index entry “Rigid, rigidity › abdominal”. Page updated September 29, 2026.
About coding abdominal rigid
The ICD-10-CM code for abdominal rigid is R19.30 (Abdominal rigidity, unspecified site). The official index lists 8 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R19.30.
Within R19.3, choose R19.30 (unspecified site) only when documentation doesn't support a more specific option: right upper quadrant abdominal rigidity (R19.31), left upper quadrant abdominal rigidity (R19.32), right lower quadrant abdominal rigidity (R19.33), left lower quadrant abdominal rigidity (R19.34), periumbilic abdominal rigidity (R19.35), epigastric abdominal rigidity (R19.36) and generalized abdominal rigidity (R19.37).
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 393 (Other Digestive System Diagnoses with MCC, relative weight 1.5881), DRG 394 (Other Digestive System Diagnoses with CC, relative weight 0.9228) and DRG 395 (Other Digestive System Diagnoses without CC/MCC, relative weight 0.6382), 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 abdominal rigid codes (official index)
- with severe abdominal pain R10.0 — Acute abdomen
- epigastric R19.36 — Epigastric abdominal rigidity
- generalized R19.37 — Generalized abdominal rigidity
- left lower quadrant R19.34 — Left lower quadrant abdominal rigidity
- left upper quadrant R19.32 — Left upper quadrant abdominal rigidity
- periumbilic R19.35 — Periumbilic abdominal rigidity
- right lower quadrant R19.33 — Right lower quadrant abdominal rigidity
- right upper quadrant R19.31 — Right upper quadrant abdominal rigidity
Common questions about abdominal rigid ICD-10 codes
What is the ICD-10 code for abdominal rigid?
- R19.30 — Abdominal rigidity, unspecified site. More specific codes apply when the documentation supports them: R10.0, R19.36, R19.37, R19.34 and others below.
What is the ICD-10 code for epigastric abdominal rigid?
- R19.36 — Epigastric abdominal rigidity.
What is the ICD-10 code for generalized abdominal rigid?
- R19.37 — Generalized abdominal rigidity.
What is the ICD-10 code for left lower quadrant abdominal rigid?
- R19.34 — Left lower quadrant abdominal rigidity.
What is the ICD-10 code for left upper quadrant abdominal rigid?
- R19.32 — Left upper quadrant abdominal rigidity.
What is the ICD-10 code for periumbilic abdominal rigid?
- R19.35 — Periumbilic abdominal rigidity.
What is the ICD-10 code for right lower quadrant abdominal rigid?
- R19.33 — Right lower quadrant abdominal rigidity.
Is R19.30 billable?
- Yes. R19.30 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R19.30 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R19.30 as a principal diagnosis.
Is R19.30 a CC or MCC?
- No. R19.30 is neither a CC nor an MCC under MS-DRG v44.0.