K86.1 — Other chronic pancreatitis
Is K86.1 billable?
Yes — K86.1 is billable for FY2027. K86.1 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. K86.1 may be submitted for encounters from October 1, 2026 through September 30, 2027.
K86.1 at a glance
| Code | K86.1 |
|---|---|
| Description | Other chronic pancreatitis |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does K86.1 group to?
K86.1 sits in MDC 07 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 438Disorders of Pancreas Except Malignancy with MCCmedical
- 439Disorders of Pancreas Except Malignancy with CCmedical
- 440Disorders of Pancreas Except Malignancy without CC/MCCmedical
As a secondary diagnosis, K86.1 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is K86.1 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to K86.1. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Pancreatitis › chronic (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative)
- Pancreatitis › cystic (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative)
- Pancreatitis › fibrous (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative)
- Pancreatitis › interstitial (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative)
- Pancreatitis › relapsing, chronic (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative)
- Hypertension, hypertensive › pancreatic duct - code to underlying condition › with chronic pancreatitis (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
- Pancreatitis › chronic › recurrent (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative)
- Pancreatitis › chronic › relapsing (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative)
- Pancreatitis › recurrent › chronic (annular) (apoplectic) (calcareous) (edematous) (hemorrhagic) (malignant) (subacute) (suppurative)
Code also
Two codes may be needed to describe the condition fully. Whether K86.1 is sequenced first depends on the reason for the encounter.
- exocrine pancreatic insufficiency (K86.81)
Inclusion terms
Alternative wording in documentation that is classified to K86.1.
- Chronic pancreatitis NOS
- Infectious chronic pancreatitis
- Recurrent chronic pancreatitis
- Relapsing chronic pancreatitis
Excludes2 — not included here — inherited from Chapter 11
The conditions below are not part of K86.1, but a patient may have both at the same time. When documentation supports it, K86.1 and the excluded code may both be reported.
- 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)
Excludes2 — not included here — inherited from K86
The conditions below are not part of K86.1, but a patient may have both at the same time. When documentation supports it, K86.1 and the excluded code may both be reported.
How long has K86.1 existed?
K86.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.