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ICD10BillableValid for clinical use

ICD-10 Code C7B.00: Secondary carcinoid tumors, unspecified site

C7B.00 is a billable ICD-10 diagnosis code used to classify Secondary carcinoid tumors, unspecified site in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. 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).

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 secondary carcinoid tumors, unspecified site 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
C76-C80Malignant neoplasms of ill-defined, other secondary and unspecified sites
block
C7BSecondary neuroendocrine tumors (C7B)
category
C7BSecondary neuroendocrine tumors
category
C7B.0Secondary carcinoid tumors
currentC7B.0

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 Physician

Coverage-related procedures and services

CPT 64417high
INJECTION(S), ANESTHETIC AGENT(S) AND/OR STEROID; AXILLARY NERVE, INCLUDING IMAGING GUIDANCE, WHEN PERFORMED
Source: CMS coverage guidance
CPT 64416high
INJECTION(S), ANESTHETIC AGENT(S) AND/OR STEROID; BRACHIAL PLEXUS, CONTINUOUS INFUSION BY CATHETER (INCLUDING CATHETER PLACEMENT), INCLUDING IMAGING GUIDANCE, WHEN PERFORMED
Source: CMS coverage guidance
CPT 64415high
INJECTION(S), ANESTHETIC AGENT(S) AND/OR STEROID; BRACHIAL PLEXUS, INCLUDING IMAGING GUIDANCE, WHEN PERFORMED
Source: CMS coverage guidance
CPT 64448high
INJECTION(S), ANESTHETIC AGENT(S) AND/OR STEROID; FEMORAL NERVE, CONTINUOUS INFUSION BY CATHETER (INCLUDING CATHETER PLACEMENT), INCLUDING IMAGING GUIDANCE, WHEN PERFORMED
Source: CMS coverage guidance
CPT 64447high
INJECTION(S), ANESTHETIC AGENT(S) AND/OR STEROID; FEMORAL NERVE, INCLUDING IMAGING GUIDANCE, WHEN PERFORMED
Source: CMS coverage guidance
CPT 64454high
INJECTION(S), ANESTHETIC AGENT(S) AND/OR STEROID; GENICULAR NERVE BRANCHES, INCLUDING IMAGING GUIDANCE, WHEN PERFORMED
Source: CMS coverage guidance

Coding guidelines

Common synonyms

Secondary carcinoid tumors, unspecified siteSecondary carcinoid tumors

Frequently asked questions

Code details

CodeC7B.00
SystemICD10
Display nameSecondary carcinoid tumors, unspecified site
ChapterNeoplasms (C00-D49)
BlockSecondary neuroendocrine tumors (C7B)

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
TumorTumor

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.