K85.80 Other acute pancreatitis without necrosis or infection

The ICD-10-CM code for Other acute pancreatitis without necrosis or infection is K85.80 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

11: Diseases of the digestive system (K00-K95)

Section

K80-K87: Disorders of gallbladder, biliary tract and pancreas (K80-K87)

Category K85

25 codes (18 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to K85.80:

• Fitz's syndrome (acute hemorrhagic pancreatitis)
• Syndrome › Fitz's
• Suppuration, suppurative › pancreas, acute
• Infection, infected, infective (opportunistic) › pancreas (acute) › specified NEC
• Pancreatitis (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative) › interstitial (chronic) › acute
• Pancreatitis (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative) › acute (without necrosis or infection) › specified NEC (without necrosis or infection)

U.S. Hospital Utilization

• An estimated 22,765 U.S. inpatient stays in 2023 included K85.80 among the documented diagnoses.
• 13,590 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Chapter 11 reserved for future expansion

11. Chapter 11: Diseases of the Digestive System (K00-K95) Reserved for future guideline expansion

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)