ICD-10-CM Update 2026 New, Revised and Delete codes
Welcome to Medicopediaa–The FY 2026 ICD-10-CM updates are officially here, bringing significant changes for healthcare providers, medical coders, and billing professionals. Effective October 1, 2025, these updates include 487 new codes, 38 revised codes, and 28 deleted codes. With every annual update, accurate coding becomes more critical to ensure compliance, proper documentation, and timely reimbursements.
In this article, we’ll break down the new ICD-10-CM codes for FY 2026, highlight the important revisions, and explain how these changes impact medical coding and healthcare practices. Whether you are a medical coder, healthcare provider, or student, understanding these ICD-10 updates is essential for smooth operations and reducing claim denials.
The FY 2026 ICD-10-CM updates include 487 new codes, 38 revised codes, and 28 deleted codes, effective October 1, 2025.
The ICD-10-CM (International Classification of Diseases, 10th Revision, Clinical Modification) is a system used by healthcare professionals to code and classify diseases, symptoms, injuries, and other health conditions. Every year, the system is reviewed and updated to reflect new medical knowledge, technology, and treatment guidelines.
Chapter 1 – Certain Infectious and Parasitic Diseases (A00–B99)
New Codes: 2
A00.0: Cholera due to Vibrio cholerae 01, biovar cholerae
A00.1: Cholera due to Vibrio cholerae 01, biovar eltor
Deleted Codes: 1
Revised Codes: 0
Chapter 2 – Neoplasms (C00–D49)
New Codes: 3
C50.911: Malignant neoplasm of unspecified site of right female breast
C50.912: Malignant neoplasm of unspecified site of left female breast
C50.919: Malignant neoplasm of unspecified site of unspecified female breast
Deleted Codes: 0
Revised Codes: 0
Chapter 3 – Diseases of the Blood and Blood-forming Organs (D50–D89)
New Codes: 3
D50.9: Iron deficiency anemia, unspecified
D51.9: Vitamin B12 deficiency anemia, unspecified
D52.9: Folate deficiency anemia, unspecified
Deleted Codes: 1
Revised Codes: 0
Chapter 4 – Endocrine, Nutritional, and Metabolic Diseases (E00–E89)
New Codes: 23
E72.53: Primary hyperoxaluria
E72.54: Secondary hyperoxaluria
E78.01: Familial hypercholesterolemia
E88.1: Lipodystrophy, not elsewhere classified
Deleted Codes: 3
Revised Codes: 0
Chapter 6 – Diseases of the Nervous System (G00–G99)
New Codes: 10
G35.81: Multiple sclerosis, relapsing-remitting
G35.82: Multiple sclerosis, primary progressive
G35.83: Multiple sclerosis, secondary progressive
G31.87: Primary progressive apraxia of speech
G71.036: Limb-girdle muscular dystrophy due to fukutin-related protein dysfunction
Deleted Codes: 1
Revised Codes: 0
Chapter 7 – Diseases of the Eye and Adnexa (H00–H59)
New Codes: 17
H10.83: Blepharitis due to Demodex infestation
H15.83: Thyroid eye disease
H40.89: Neovascular glaucoma
Deleted Codes: 1
Revised Codes: 0
Chapter 9 – Diseases of the Circulatory System (I00–I99)
New Codes: 4
I26.93: Pulmonary embolism due to long-term use of oral contraceptives
I50.93: Heart failure due to long-term use of oral contraceptives
I82.93: Venous thrombosis due to long-term use of oral contraceptives
I99.93: Other specified circulatory disorders due to long-term use of oral contraceptives
Deleted Codes: 0
Revised Codes: 0
Chapter 12 – Diseases of the Skin and Subcutaneous Tissue (L00–L99)
New Codes: 116
L02.217: Cutaneous abscess of back, including flank
L03.115: Cellulitis of back, including flank
L04.115: Lymphangitis of back, including flank
L97.819: Non-pressure chronic ulcer of skin of back, including flank, stage 1
L97.820: Non-pressure chronic ulcer of skin of back, including flank, stage 2
L97.821: Non-pressure chronic ulcer of skin of back, including flank, stage 3
L97.822: Non-pressure chronic ulcer of skin of back, including flank, stage 4
Deleted Codes: 2
Revised Codes: 0
Chapter 19 – Injury, Poisoning, and Other Consequences of External Causes (S00–T88)
New Codes: 213
S10.91: Superficial injury of back, including flank
S20.91: Contusion of back, including flank
S30.91: Laceration of back, including flank
S40.91: Puncture wound of back, including flank
T51.91: Toxic effect of alcohol, accidental (unintentional)
T52.91: Toxic effect of other solvents, accidental (unintentional)
T53.91: Toxic effect of other gases and vapors, accidental (unintentional)
T54.91: Toxic effect of other metals, accidental (unintentional)
Deleted Codes: 12
Revised Codes: 24
FAQs – ICD-10-CM 2026 Update
1. What is the ICD-10-CM 2026 update?
The ICD-10-CM 2026 update is a revision of the medical coding system that includes 487 new codes, 28 deleted codes, and 38 revised codes. These changes help healthcare providers document diseases, injuries, and conditions more accurately, improving patient care and insurance reporting.
2. Why are new codes added?
New codes are added to:
Reflect advancements in medical research and treatments
Include newly recognized diseases and conditions
Provide greater detail for accurate diagnosis and care planning.
3. When will the ICD-10-CM 2026 update take effect?
The update will officially take effect on October 1, 2025, and should be fully implemented in healthcare systems from that date.
4. What is the purpose of revised codes?
Revised codes include updated descriptions or definitions to better represent the disease or condition. These revisions ensure the coding stays aligned with the latest medical guidelines.
5. Why are some codes deleted?
Codes are deleted when:
They are outdated or redundant
Medical understanding has changed
They no longer reflect current practices
Deleting old codes helps ensure that coding is clear and precise.
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ICD 10 CM New updates 2026 Chapter Wise
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