K82.8 — Other specified diseases of gallbladder
Is K82.8 billable?
Yes, but K82.8 is an unspecified code. K82.8 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, K82.8 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting K82.8 — the more specific alternatives are listed below.
K82.8 at a glance
| Code | K82.8 |
|---|---|
| Description | Other specified diseases of gallbladder |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does K82.8 group to?
K82.8 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.
- 444Disorders of the Biliary Tract with MCCmedical
- 445Disorders of the Biliary Tract with CCmedical
- 446Disorders of the Biliary Tract without CC/MCCmedical
How is K82.8 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to K82.8. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Acholia
- Cholecystectasia
- Rokitansky-Aschoff sinuses (gallbladder)
- Adhesions, adhesive › cystic duct (postinfective)
- Adhesions, adhesive › gallbladder (postinfective)
- Adhesions, adhesive › pericholecystic (postinfective)
- Atrophy, atrophic › cystic duct (of)
- Atrophy, atrophic › gallbladder (of)
- Calcification › gallbladder
- Cyst › cystic duct (colloid) (mucous) (simple) (retention)
- Cyst › gallbladder (colloid) (mucous) (simple) (retention)
- Dilatation › cystic duct
Inclusion terms
Alternative wording in documentation that is classified to K82.8.
- Adhesions of cystic duct or gallbladder
- Atrophy of cystic duct or gallbladder
- Cyst of cystic duct or gallbladder
- Dyskinesia of cystic duct or gallbladder
- Hypertrophy of cystic duct or gallbladder
- Nonfunctioning of cystic duct or gallbladder
- Ulcer of cystic duct or gallbladder
Excludes1 — never code together — inherited from K82
The conditions below can never be reported together with K82.8 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 11
The conditions below are not part of K82.8, but a patient may have both at the same time. When documentation supports it, K82.8 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)
How long has K82.8 existed?
K82.8 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.