ICD-10-CM 2027
ICD-10 code for abdomen acute
From the official ICD-10-CM alphabetic index entry “Acute › abdomen”. Page updated September 29, 2026.
About coding abdomen acute
The ICD-10-CM code for abdomen acute is R10.0 (Acute abdomen).
Within R10 (abdominal and pelvic pain), R10.0 is specifically for acute abdomen. Related codes cover pain localized to upper abdomen (R10.1), pelvic and perineal pain (R10.2), pain localized to other parts of lower abdomen (R10.3), other abdominal pain (R10.8), unspecified abdominal pain (R10.9) and pain localized to flank (R10.A).
Don't report R10.0 together with the conditions in its Excludes1 note: abdominal rigidity NOS (R19.3), generalized abdominal pain NOS (R10.84) and localized abdominal pain (R10.1-R10.3-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Don't confuse with (Excludes1 for R10.0)
Common questions about abdomen acute ICD-10 codes
What is the ICD-10 code for abdomen acute?
- R10.0 — Acute abdomen.
Is R10.0 billable?
- Yes. R10.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R10.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R10.0 as a principal diagnosis.
Is R10.0 a CC or MCC?
- No. R10.0 is neither a CC nor an MCC under MS-DRG v44.0.