D23.121 Other benign neoplasm of skin of left upper eyelid, including canthus

✓ Billable ICD-10-CM 2026
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The ICD-10-CM code for Other benign neoplasm of skin of left upper eyelid, including canthus is D23.121 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Section
D10-D36: Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
Category D23
28 codes (20 billable)
FY2026 Status
Stable since FY2024

U.S. Hospital Utilization

D23.121 appeared in too few sampled U.S. inpatient stays in 2023 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Tx of primary site (TOC entry)

a. Admission/Encounter for treatment of primary site ............................................................. 33

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.2.a
Tx of secondary site (TOC entry)

b. Admission/Encounter for treatment of secondary site .......................................................... 33

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.2.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

Parent Code

D23 Other benign neoplasms of skin

Related Codes in D23

D23 Other benign neoplasms of skin D23.0 Other benign neoplasm of skin of lip D23.1 Other benign neoplasm of skin of eyelid, including canthus D23.10 Other benign neoplasm of skin of unspecified eyelid, including canthus D23.11 Other benign neoplasm of skin of right eyelid, including canthus D23.111 Other benign neoplasm of skin of right upper eyelid, including canthus D23.112 Other benign neoplasm of skin of right lower eyelid, including canthus D23.12 Other benign neoplasm of skin of left eyelid, including canthus D23.122 Other benign neoplasm of skin of left lower eyelid, including canthus D23.2 Other benign neoplasm of skin of ear and external auricular canal D23.20 Other benign neoplasm of skin of unspecified ear and external auricular canal D23.21 Other benign neoplasm of skin of right ear and external auricular canal D23.22 Other benign neoplasm of skin of left ear and external auricular canal D23.3 Other benign neoplasm of skin of other and unspecified parts of face D23.30 Other benign neoplasm of skin of unspecified part of face D23.39 Other benign neoplasm of skin of other parts of face D23.4 Other benign neoplasm of skin of scalp and neck D23.5 Other benign neoplasm of skin of trunk D23.6 Other benign neoplasm of skin of upper limb, including shoulder D23.60 Other benign neoplasm of skin of unspecified upper limb, including shoulder
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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