Medical notice. This page is for information only. It is not medical advice and does not replace a doctor. Severe abdominal pain needs urgent care — call 112 or go to hospital. See the medical disclaimer.
K86.1 is the ICD-10-CM code for other chronic pancreatitis. Alcohol-induced chronic disease uses K86.0 instead. This page is a US ICD-10-CM FY 2026 coding reference from icd10data.com — not clinical advice. Clinical overview: Chronic pancreatitis. Hub: Pancreatitis ICD-10.
Watch: Osmosis / Elsevier — chronic pancreatitis (medical education). Not medical advice.
K86.1 versus K86.0
| Code | Title | When it is used (per Tabular / Applicable To) |
|---|---|---|
| K86.0 | Alcohol-induced chronic pancreatitis | Chronic pancreatitis attributed to alcohol in the record |
| K86.1 | Other chronic pancreatitis | Chronic pancreatitis that is not coded as alcohol-induced under K86.0 |
Do not choose K86.0 vs K86.1 from a website guess — follow documentation and the official index. (icd10data — K86.1; K86)
K86.1 — Applicable To
Per ICD-10-CM listings for K86.1, Applicable To includes:
- Chronic pancreatitis NOS
- Infectious chronic pancreatitis
- Recurrent chronic pancreatitis
- Relapsing chronic pancreatitis
(“NOS” means not otherwise specified.)
Code Also: K86.81 (EPI)
Code Also K86.81 — Exocrine pancreatic insufficiency — when EPI is documented with chronic pancreatitis. EPI is a related K86 code; a dedicated EPI page is planned on this site. List it when the record supports it; do not invent the diagnosis from this article.
| Related K86 codes | Description | Note |
|---|---|---|
| K86.2 | Cyst of pancreas | Related; page planned |
| K86.3 | Pseudocyst of pancreas | Related; page planned |
| K86.81 | Exocrine pancreatic insufficiency | Code Also with K86.1 when applicable |
| K86.89 | Other specified diseases of pancreas | |
| K86.9 | Disease of pancreas, unspecified |
Acute-on-chronic dual coding
If the same patient has an acute attack and underlying chronic pancreatitis, and separate Alphabetic Index entries exist, ICD-10-CM FY2026 §I.B.8 says: code both, and sequence the acute code (K85.xx) first, then the chronic code (K86.0 or K86.1). Full acute table: Acute pancreatitis ICD-10. Overview: Pancreatitis ICD-10.
Clinical context only (not codes)
NHS: chronic pancreatitis is long-term, currently has no cure, can affect how long you live, and most people live with it for many years. Stop alcohol and smoking to help slow damage. Those statements are clinical context — they do not create ICD codes. Outlook figures: Pancreatitis life expectancy. (NHS, last reviewed 20 October 2025)
Key takeaways
- K86.1 = other chronic pancreatitis; K86.0 = alcohol-induced chronic pancreatitis.
- Applicable To for K86.1 includes NOS, infectious, recurrent and relapsing chronic pancreatitis.
- Code Also K86.81 when EPI is documented.
- Acute + chronic → both codes, acute first (§I.B.8).
- US ICD-10-CM; verify against the current Tabular List.
FAQ
What is the ICD-10 code for chronic pancreatitis?
Usually K86.1 (other chronic pancreatitis) or K86.0 (alcohol-induced), depending on documentation. (icd10data K86.1)
What is the difference between K86.0 and K86.1?
K86.0 is alcohol-induced chronic pancreatitis. K86.1 is other chronic pancreatitis (including NOS, infectious, recurrent, relapsing per Applicable To).
Do I always add K86.81?
Only when exocrine pancreatic insufficiency is documented — then Code Also K86.81.
How is acute-on-chronic coded?
K85.xx first, then K86.0 or K86.1, when both conditions are coded under §I.B.8. See Acute pancreatitis ICD-10.
Is this the same in every country?
This page describes US ICD-10-CM. National modifications elsewhere may differ.
See also: Pancreatitis ICD-10 · Acute pancreatitis ICD-10 · Chronic pancreatitis · Pancreatitis life expectancy · Sources
Last editorial check: 4 September 2026. Not medically reviewed by a clinician. Coding reference only.