K80.4 — Calculus of bile duct with cholecystitis

Not billable

Is K80.4 billable?

No — K80.4 is a non-billable header code. K80.4 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 8 billable codes beneath K80.4.

Billable codes under this header

K80.4 at a glance

Code	K80.4
Description	Calculus of bile duct with cholecystitis
Billable	No — header code
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Use additional code

Report an additional code alongside K80.4 to fully describe the condition. K80.4 is sequenced first.

code if applicable for associated gangrene of gallbladder (K82.A1), or perforation of gallbladder (K82.A2)

Code also

Two codes may be needed to describe the condition fully. Whether K80.4 is sequenced first depends on the reason for the encounter.

, if applicable, fistula of bile duct (K83.3)

Inclusion terms

Alternative wording in documentation that is classified to K80.4.

Any condition listed in K80.5 with cholecystitis (with cholangitis)

Excludes1 — never code together — inherited from K80

The conditions below can never be reported together with K80.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

retained cholelithiasis following cholecystectomy (K91.86)

Excludes2 — not included here — inherited from Chapter 11

The conditions below are not part of K80.4, but a patient may have both at the same time. When documentation supports it, K80.4 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)

What codes fall under K80.4? (8)

How long has K80.4 existed?

K80.4 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.