2027 ICD-10-CM Diagnosis Code K86.89Other specified diseases of pancreas

ICD-10-CM Codes›K00–K95›K80-K87›K86

ICD-10-CM K86.89
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K86.89 is a billable ICD-10-CM diagnosis code for other specified diseases of pancreas. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 438 through 440. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Pancreatic disorders (excluding diabetes).

K86.89 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model. It still risk-adjusts in the RxHCC Part D (V08) category 66 for payment year 2027.

Code Identity

ICD-10-CM Code
K86.89
Billable Status
Yes — Valid for Submission
Code Describes
Other specified diseases of pancreas
Short Description
Other specified diseases of pancreas
Same as the full description in the CMS dataset.
Parent Code
Other specified diseases of pancreas

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK80-K87Disorders of gallbladder, biliary tract and pancreas
CategoryK86Other diseases of pancreas
This CodeK86.89Other specified diseases of pancreas

Medicare Risk Adjustment (HCC)Billing

K86.89 does not risk-adjust for Medicare Advantage under the CMS-HCC V28 model, but it maps to payment categories in the other CMS models shown below.

CMS-HCC V28 (Medicare Advantage Payment Model)
Not mapped
no payment category in the model that pays 100% of MA risk scores
Prior Model (CMS-HCC V24)
Not mapped under V24
this diagnosis newly risk-adjusts under the V28 model
Part D (RxHCC)
RxHCC 66 — Pancreatic Disorders and Intestinal Malabsorption, Except Pancreatitis
also risk-adjusts in the Part D prescription drug model (V08)

Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute pancreatic fluid collection
  • Aseptic necrosis of pancreas
  • Atrophy of pancreas
  • Baggenstoss change of pancreas
  • Calculus of pancreas
  • Complete obstruction of pancreatic duct
  • Congenital dyserythropoietic anemia
  • Congenital pancreatic trypsin deficiency
  • Cytochrome-c oxidase deficiency
  • Deficiency of trypsin
  • Diabetes mellitus associated with pancreatic disease
  • Disorder of pancreatic duct anastomosis
  • Dysfunction of sphincter of Oddi
  • Exocrine pancreatic insufficiency
  • Fat necrosis of pancreas
  • Fatty pancreas
  • Fibrocalculous pancreatic diabetes
  • Fibrosis of pancreas
  • Functional pancreatic sphincter of Oddi disorder
  • Hemorrhage of pancreas
  • Hemorrhage of pancreatic duct
  • Infantile multisystem neurologic, endocrine, pancreatic disease
  • Leakage from pancreatic tail
  • Megaloblastic anemia due to pancreatic insufficiency
  • Mild pancreatic duct dysplasia
  • Moderate pancreatic duct dysplasia
  • Necrosis of pancreas
  • Pancreatemphraxis
  • Pancreatic acinar atrophy
  • Pancreatic acinar fistula
  • Pancreatic alpha-amylase deficiency
  • Pancreatic and peripancreatic necrosis
  • Pancreatic ascites
  • Pancreatic collection
  • Pancreatic duct anastomotic stricture
  • Pancreatic duct calculus
  • Pancreatic duct dysplasia
  • Pancreatic duct leakage
  • Pancreatic duct obstruction
  • Pancreatic duct obstruction by calculus
  • Pancreatic duct stricture
  • Pancreatic fistula
  • Pancreatic insufficiency
  • Pancreatic insufficiency due to cystic fibrosis of pancreas
  • Pancreatic insufficiency, dyserythropoietic anemia, calvarial hyperostosis syndrome
  • Pancreatic triacylglycerol lipase deficiency
  • Pancreatitis due to pancreatic duct obstruction
  • Peripancreatic hematoma
  • Relapsing pancreatic necrosis
  • Retroperitoneal fat necrosis
  • Retroperitoneal hemorrhage
  • Secondary pancreatic insufficiency
  • Severe pancreatic duct dysplasia
  • Subacute pancreatic necrosis
  • Walled-off pancreatic necrosis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K86.89: its own notes plus those printed at K86 and Chapter 11. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Aseptic pancreatic necrosis, unrelated to acute pancreatitis
  • Atrophy of pancreas
  • Calculus of pancreas
  • Cirrhosis of pancreas
  • Fibrosis of pancreas
  • Pancreatic fat necrosis, unrelated to acute pancreatitis
  • Pancreatic infantilism
  • Pancreatic necrosis NOS, unrelated to acute pancreatitis

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From K86 Other diseases of pancreas applies to 7 codes
  • fibrocystic disease of pancreas (E84.-)
  • islet cell tumor (of pancreas) (D13.7)
  • pancreatic steatorrhea (K90.3)
From Chapter 11 (K00-K95) Diseases of the digestive system applies to 863 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name K86.89, its category, or a range that includes it.

Code First 1

These codes say to code first a condition named in the note, and K86.89 is one of the conditions named.

  • E08 Diabetes mellitus due to underlying condition
    pancreatitis and other diseases of the pancreas (K85-K86.-) names K85-K86, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR DIG020
Pancreatic disorders (excluding diabetes)
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Pancreatic Diseases

The pancreas is a gland behind your stomach and in front of your spine. It produces juices that help break down food and hormones that help control blood sugar levels. Problems with the pancreas can lead to many health problems. These include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert K86.89 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
577.8 Pancreatic disease NEC
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement K86.89 replaces the following previously assigned code(s):

  • K86.8 - Other specified diseases of pancreas
FY 2019AddedAdded to the ICD-10-CM code setEffective October 1, 2018.
FY 2020–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K86.89Overview

What is the ICD-10 code for other specified diseases of pancreas?

The ICD-10-CM code for other specified diseases of pancreas is K86.89 (sometimes written as K8689). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is K86.89 (Other specified diseases of pancreas) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified diseases of pancreas on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does K86.89 group to?

When other specified diseases of pancreas is the principal diagnosis on an inpatient stay, it groups to MS-DRG 440, 438, 439, with relative weights from 0.5966 to 1.5763 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K86.89?

Under the General Equivalence Mappings, other specified diseases of pancreas converts to ICD-9-CM 577.8 (pancreatic disease NEC). The mapping is approximate, so confirm the match fits the documentation.

Does K86.89 risk-adjust for Medicare Advantage payment?

Not for Medicare Advantage: K86.89 maps to no category in the CMS-HCC V28 model. It still risk-adjusts in the RxHCC Part D (V08) category 66 (Pancreatic Disorders and Intestinal Malabsorption, Except Pancreatitis).