HealthAssure
HealthAssureGood Life
ICD10BillableValid for clinical use

ICD-10 Code D21.0: Benign neoplasm of connective and other soft tissue of head, face and neck

D21.0 is a billable ICD-10 diagnosis code used to classify Benign neoplasm of connective and other soft tissue of head, face and neck 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 benign neoplasm of connective and other soft tissue of head, face and neck 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
D10-D36Benign neoplasms, except benign neuroendocrine tumors
category
D21Other benign neoplasms of connective and other soft tissue
currentD21

Official coding notes

Inclusion terms
  • Benign neoplasm of connective tissue of ear
  • Benign neoplasm of connective tissue of eyelid
Excludes1 (do not code together)
  • benign neoplasm of connective tissue of orbit (D31.6-)

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 70460high
COMPUTED TOMOGRAPHY, HEAD OR BRAIN; WITH CONTRAST MATERIAL(S)
Source: CMS coverage guidance
CPT 70450high
COMPUTED TOMOGRAPHY, HEAD OR BRAIN; WITHOUT CONTRAST MATERIAL
Source: CMS coverage guidance
CPT 70470high
COMPUTED TOMOGRAPHY, HEAD OR BRAIN; WITHOUT CONTRAST MATERIAL, FOLLOWED BY CONTRAST MATERIAL(S) AND FURTHER SECTIONS
Source: CMS coverage guidance
CPT 95940high
CONTINUOUS INTRAOPERATIVE NEUROPHYSIOLOGY MONITORING IN THE OPERATING ROOM, ONE ON ONE MONITORING REQUIRING PERSONAL ATTENDANCE, EACH 15 MINUTES (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
HCPCS G0453high
CONTINUOUS INTRAOPERATIVE NEUROPHYSIOLOGY MONITORING, FROM OUTSIDE THE OPERATING ROOM (REMOTE OR NEARBY), PER PATIENT, (ATTENTION DIRECTED EXCLUSIVELY TO ONE PATIENT) EACH 15 MINUTES (LIST IN ADDITION TO PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 11440high
EXCISION, OTHER BENIGN LESION INCLUDING MARGINS, EXCEPT SKIN TAG (UNLESS LISTED ELSEWHERE), FACE, EARS, EYELIDS, NOSE, LIPS, MUCOUS MEMBRANE; EXCISED DIAMETER 0.5 CM OR LESS
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
D21.0

Common synonyms

Benign neoplasm of connective and other soft tissue of head, face and neck

Frequently asked questions

Code details

CodeD21.0
SystemICD10
Display nameBenign neoplasm of connective and other soft tissue of head, face and neck
ChapterNeoplasms (C00-D49)
BlockBenign neoplasms, except benign neuroendocrine tumors

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

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.