K81.0
Acute cholecystitis
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 9 never code together
K00-K95chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 8
Index entries leading here 6
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
- gallbladder K81.0
- Gallbladder — see also condition
- acute K81.0
- Cholecystitis K81.9
- acute (emphysematous) (gangrenous) (suppurative) K81.0
- Empyema (acute) (chest) (double) (pleura) (supradiaphragmatic) (thorax) J86.9
- gallbladder K81.0
- Septic — see condition
- gallbladder (acute) K81.0
- Suppuration, suppurative — see also condition
- gallbladder (acute) K81.0
Alongside this code 3 same parent — K81
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.