ICD10BillableValid for clinical use
ICD-10 Code C23: Malignant neoplasm of gallbladder
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Neoplasms (C00-D49).
When is it used?
- May be used when a clinician documents malignant neoplasm of gallbladder in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
2Neoplasms (C00-D49)
block
C00-C96Malignant neoplasms
block
C00-C75Malignant neoplasms, stated or presumed to be primary (of specified sites), and certain specified histologies, except neuroendocrine, and of lymphoid, hematopoietic and related tissue
block
C15-C26Malignant neoplasms of digestive organs
currentC15-C26
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
OncologistGeneral PhysicianUrologist
Related codes
C15Malignant neoplasm of esophaguscategoryC16Malignant neoplasm of stomachcategoryC17Malignant neoplasm of small intestinecategoryC18Malignant neoplasm of coloncategoryC19Malignant neoplasm of rectosigmoid junctioncodeC20Malignant neoplasm of rectumcodeC21Malignant neoplasm of anus and anal canalcategoryC22Malignant neoplasm of liver and intrahepatic bile ductscategoryC24Malignant neoplasm of other and unspecified parts of biliary tractcategoryC25Malignant neoplasm of pancreascategoryC26Malignant neoplasm of other and ill-defined digestive organscategory
Sibling codes
C15Malignant neoplasm of esophagusC16Malignant neoplasm of stomachC17Malignant neoplasm of small intestineC18Malignant neoplasm of colonC19Malignant neoplasm of rectosigmoid junctionbillableC20Malignant neoplasm of rectumbillableC21Malignant neoplasm of anus and anal canalC22Malignant neoplasm of liver and intrahepatic bile ductsC24Malignant neoplasm of other and unspecified parts of biliary tractC25Malignant neoplasm of pancreasC26Malignant neoplasm of other and ill-defined digestive organs
Coverage-related procedures and services
CPT 81479high
UNLISTED MOLECULAR PATHOLOGY PROCEDURE
Source: CMS coverage guidance
CPT 81445high
SOLID ORGAN NEOPLASM, GENOMIC SEQUENCE ANALYSIS PANEL, 5-50 GENES, INTERROGATION FOR SEQUENCE VARIANTS AND COPY NUMBER VARIANTS OR REARRANGEMENTS, IF PERFORMED; DNA ANALYSIS OR COMBINED DNA AND RNA ANALYSIS
Source: CMS coverage guidance
CPT 0543Uhigh
ONCOLOGY (SOLID TUMOR), NEXT-GENERATION SEQUENCING OF DNA FROM FORMALIN-FIXED PARAFFIN-EMBEDDED (FFPE) TISSUE OF 517 GENES, INTERROGATION FOR SINGLE-NUCLEOTIDE VARIANTS, MULTI-NUCLEOTIDE VARIANTS, INSERTIONS AND DELETIONS FROM DNA, FUSIONS IN 24 GENES AND SPLICE VARIANTS IN 1 GENE FROM RNA, AND TUMOR MUTATION BURDEN
Source: CMS coverage guidance
CPT 0329Uhigh
ONCOLOGY (NEOPLASIA), EXOME AND TRANSCRIPTOME SEQUENCE ANALYSIS FOR SEQUENCE VARIANTS, GENE COPY NUMBER AMPLIFICATIONS AND DELETIONS, GENE REARRANGEMENTS, MICROSATELLITE INSTABILITY AND TUMOR MUTATIONAL BURDEN UTILIZING DNA AND RNA FROM TUMOR WITH DNA FROM NORMAL BLOOD OR SALIVA FOR SUBTRACTION, REPORT OF CLINICALLY SIGNIFICANT MUTATION(S) WITH THERAPY ASSOCIATIONS
Source: CMS coverage guidance
CPT 0250Uhigh
ONCOLOGY (SOLID ORGAN NEOPLASM), TARGETED GENOMIC SEQUENCE DNA ANALYSIS OF 505 GENES, INTERROGATION FOR SOMATIC ALTERATIONS (SNVS [SINGLE NUCLEOTIDE VARIANT], SMALL INSERTIONS AND DELETIONS, ONE AMPLIFICATION, AND FOUR TRANSLOCATIONS), MICROSATELLITE INSTABILITY AND TUMOR-MUTATION BURDEN
Source: CMS coverage guidance
CPT 0244Uhigh
ONCOLOGY (SOLID ORGAN), DNA, COMPREHENSIVE GENOMIC PROFILING, 257 GENES, INTERROGATION FOR SINGLE-NUCLEOTIDE VARIANTS, INSERTIONS/DELETIONS, COPY NUMBER ALTERATIONS, GENE REARRANGEMENTS, TUMOR-MUTATIONAL BURDEN AND MICROSATELLITE INSTABILITY, UTILIZING FORMALIN-FIXED PARAFFIN-EMBEDDED TUMOR TISSUE
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 765741003high
Adenocarcinoma of gallbladder and extrahepatic biliary tract
Source: SNOMED International ICD-10 map
SNOMED_CT 372140005high
Carcinoma of gallbladder
Source: SNOMED International ICD-10 map
SNOMED_CT 1162855005high
Carcinoma of gallbladder and extrahepatic biliary tract
Source: SNOMED International ICD-10 map
SNOMED_CT 314962005high
Local recurrence of malignant neoplasm of gallbladder
Source: SNOMED International ICD-10 map
SNOMED_CT 866071006high
Malignant mesenchymal neoplasm of gallbladder
Source: SNOMED International ICD-10 map
SNOMED_CT 363353009high
Malignant neoplasm of gallbladder
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
C23
Common synonyms
Malignant neoplasm of gallbladder
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.