Do you know CMS has finally announced ICD-10-CM updates for 2024-2025? These updates will introduce new codes, revisions, and deletions while impacting various specialties. CMS has provided all the latest codes required for the coming advancements in medicine and newly emerging diseases, treatments, and conditions. These ICD-10-CM updates will make sure that the USA’s medical coding system remains up-to-date with emerging medical practices. They will also enable providers to document new diagnoses and procedures accurately to get reimbursed correctly.
This blog will explore some of the important new ICD-10-CM updates and code revisions so you can easily integrate them into your practice and protect your revenue.
How Many Codes Are Included in ICD-10-CM Updates?
The 2025 ICD-10 code changes include the addition of 291 new codes, 3 deletions, 14 revised code descriptions, and 33 code conversions to parent codes. These updates are made to address emerging health conditions while improving documentation precision and maintaining compliance with coding standards. The breakdown of new codes is as follows and you can also find the official list of new ICD-10-CM updates here.
| Change | Description | Effective Date |
| New Codes | 291 new codes added | October 1st, 2024 |
| Deleted Codes | 3 codes removed | October 1st, 2024 |
| Revised Codes | 14 code titles revised | October 1st, 2024 |
| Conversions to Parent Codes | 33 Codes Converted | October 1st, 2024 |
Major Specialty-Specific 2024-2025 ICD-10-CM Updates
Here are the specialties that underwent code changes, deletions, or revisions based on the October 2024 ICD-10-CM updates:
1. Oncology (Lymphomas & Hematologic Disorders)
This year ICD-10-CM 2025 updates include numerous new codes for various types of Hodgkin and non-Hodgkin lymphomas. These codes now account for conditions where the disease is in remission, improving the documentation of cancer recovery.
New Codes
There are now multiple new codes for Hodgkin, non-Hodgkin, & various types of B-cell and T-cell lymphomas.
Deleted Codes
Diffuse large B-cell lymphoma, extranodal sites; NK/T-cell lymphoma, nasal type.
The list of important codes added for the Oncology specialty:
| Code | Description |
|
C81.0A |
Nodular lymphocyte predominant HL, in abatement |
| C81.2A |
Mixed cellularity Hodgkin lymphoma with remission |
|
C82.0A |
Follicular lymphoma grade I, in diminution |
| C83.7A |
Burkitt lymphoma, in alleviation |
2. Endocrinology (Diabetes & Metabolic Disorders)
The new ICD10 code changes for 2024-2025 have codes for Type 1 diabetes. These codes will pave the way for early disease detection and management. These updates emphasize prevention to help providers document pre-diabetic conditions for value-based care.
New Codes
There are codes in the update for presymptomatic Type 1 diabetes mellitus, and disorders of citrate metabolism.
The list of important codes added for Endocrinology:
| Code | Description |
| E10.A | Type 1 diabetes mellitus, pre-symptomatic |
| E10.A1 | Type 1 diabetes, presymptomatic, Stage 1 |
| E10.A2 | Type 1 DM, presymptomatic, Stage 2 |
3. Gastroenterology (Fistulas)
In gastro coding, updates for anorectal and rectal fistulas provide more detailed descriptions of complex cases in order to improve accuracy in surgical documentation and post-procedure follow-ups.
New Codes
There are now many new codes for anal, rectal, and anorectal fistulas, differentiated by complexity and recurrence.
The list of most important codes added for Gastroenterology:
| Code | Description |
| K60.30 | Anal fistula, unspecified |
| K60.32 | Anal fistula, complex |
| K60.42 | Rectal fistula, complex |
4. Neurology (Epilepsy & Neurological Conditions)
In the case of neurology, changes in the code come with the inclusion of new KCNQ 2-related epilepsy codes as a means of providing a detailed categorization of this rare but worthy condition. Accurate documentation will here allow for improved tracking of treatment outcomes and patient care.
New Codes
This update holds new codes for KCNQ2-related epilepsy and developmental encephalopathies.
The list of important codes added for Neurology:
| Code | Description |
| G40.841 | KCNQ2 epilepsy, not intractable, with status epilepticus |
| G40.844 | KCNQ2 related epilepsy, intractable, without status epilepticus |
5. Pulmonology (Embolisms)
New ICD-10-CM codes for embolism-related conditions have been introduced for pulmonology with specific attention to embolisms without acute cor pulmonale. These updates will help providers distinguish between complex pulmonary conditions for more accurate documentation and treatment.
New Codes
This CMS update adds codes for cement and fat embolism of the pulmonary artery with or without cor pulmonale.
The list of important codes added for Pulmonology:
| Code | Description |
| I26.95 | Cement embolism of pulmonary artery without acute cor pulmonale |
| I26.96 | Fat embolism without acute cor pulmonale |
6. Mental Health (Eating Disorders)
The 2025 updates also introduced new codes for mental eating disorders, reflecting varying degrees of severity. These codes allow providers to track and document the severity of these conditions more accurately.
New Codes
There are many new codes added for anorexia nervosa and bulimia nervosa with various severity levels.
Deleted Codes
General codes for bulimia and binge eating disorders are now deleted.
The list of important codes added for Mental Health specialty:
| Code | Description |
| F50.010 | Anorexia nervosa, restricting type, mild |
| F50.021 | Binge eating/purging type, Anorexia nervosa, moderate |
| F50.23 | Bulimia nervosa, severe |
| F50.813 | Binge disorder, extreme |
7. Cardiology (Congenital Heart Defects)
CMS has added new codes for cardiology specialty to classify congenital heart defects more specifically, including conditions like bicuspid aortic valve and congenital mitral valve clefts. These updates enhance the accuracy of documenting congenital heart conditions.
New Codes
This update discloses a huge list of new codes for bicuspid aortic valve and congenital mitral valve malformations.
The list of important codes added for Cardiology:
| Code | Description |
| Q23.81 | Bicuspid aortic valve |
| Q23.82 | Congenital mitral valve cleft leaflet |
| Q23.88 | Other malformations of aortic & mitral valves |
8. Obesity and Metabolic Disorders
For obesity, new codes have also been introduced to reflect different classifications, including obesity due to specific metabolic pathways, like the disruption of the MC4R pathway. This helps in more personalized treatment planning and documentation for providers.
New Codes
The list of new codes for obesity differentiates obesity by class and metabolic causes.
The list of important codes added for Obesity and Metabolism Disorders:
| Code | Description |
| E66.811 | Obesity, class 1 |
| E66.812 | Obesity, class 2 |
| E66.813 | Obesity, class 3 |
| E88.82 | Obesity caused by problems with the MC4R pathway |
9. Dermatology (Alopecia & Pruritus)
The ICD-10-CM updates now cover different types of alopecia, including frontal fibrosing alopecia and lichen planopilaris. These updates offer more specific documentation options for alopecia and pruritus.
New Codes
The new update has many new codes for different types of lichen planopilaris and pruritus.
The list of most important codes added for Dermatology specialty:
| Code | Description |
| L66.12 | Frontal fibrosing alopecia |
| L66.19 | Other lichen planopilaris |
| L29.81 | Cholestatic pruritus |
| L29.89 | Other pruritus |
10. Musculoskeletal (Disc Degeneration & Synovitis)
The 2025 updates add codes for disc degeneration in specific spinal regions, offering more detailed descriptions of lumbar and lumbosacral region conditions. They also include updates for synovitis and tenosynovitis affecting different body parts.
New Codes
There are new codes for lumbar and lumbosacral disc degeneration and synovitis affecting multiple joints.
The list of most important codes added for Musculoskeletal:
| Code | Description |
| M51.360 | Other intervertebral disc degeneration, lumbar region with discogenic back pain only |
| M51.370 | Other intervertebral disc degeneration, lumbosacral region with discogenic back pain only |
| M65.911 | Unspecified synovitis and tenosynovitis, right shoulder |
| M65.941 | Unspecified clear synovitis and tenosynovitis, right hand |
These specialties reflect the broad impact of the 2024 ICD-10-CM updates to ensure more precise documentation for emerging medical conditions and improved medical coding accuracy for complex cases.
Deleted Codes for ICD-10-CM Updates
There are 3 codes that are deleted from the previous ICD-10 codes list to add new and refined codes for more comprehensive billing procedures. Here is the list of the deleted codes:
| Code | Description |
| T81.32XA | Disruption of internal operation (surgical) wound, not elsewhere classified, initial encounter |
| T81.32XD | Disruption of internal operation (surgical) wound, not elsewhere classified, subsequent encounter |
| T81.32XS | Disruption of internal operation (surgical) wound, notelsewhere classified, sequela |
Revised Medical Codes in 2024 ICD-10-CM Updates
CMS has revised 14 medical codes in total for the 2024 ICD-10-CM updates. The list of these codes is as follows:
- A77.41
Ehrlichiosis chaffeensis [E. chaffeensis]
- F98.21
Rumination disorder of infancy and childhood
- G93.42
Megalencephalic leukoencephalopathy with subcortical cysts
- H44.2A3
Degenerative myopia with choroidal neovascularization,
bilateral
- H44.2B3
Degenerative myopia with macular hole, bilateral
- H44.2C3
Degenerative myopia with retinal detachment, bilateral
- H44.2D3
Degenerative myopia with foveoschisis, bilateral
- H44.2E3
Degenerative myopia with other maculopathy, bilateral
- I26.93
Single subsegmental thrombotic pulmonary embolism without
acute cor pulmonale
- I26.94
Multiple subsegmental thrombotic pulmonary emboli without
acute cor pulmonale
- K58.9
Irritable bowel syndrome with unspecification
- Q13.81
Rieger anomaly
- Z17
Estrogen, and other hormones and factors receptor status
- Z68.54
Body mass index [BMI] pediatric, 95th percentile for age to less than 120% of the 95th percentile for age
List of Conversions to Parent Code in ICD 10 2025 Updates
The ICD 10 2025 updates made 33 code conversions to parent code in order to make the coding process more comprehensive and detailed. The list of the most important parent conversions based on the significance of conditions or their widespread impact is as follows:
- C86.0
Extranodal NK/T-cell lymphoma, nasal type
- C88.0
Waldenstrom macroglobulinemia
- C88.4
Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT-lymphoma)
- E66. 8
Other obesity
- F50.2
Bulimia nervosa
- G90.8
Other disorders of autonomic nervous system
- K60.3
Anal fistula
- M51.36
Other intervertebral disc degeneration, lumbar region
- Z86.010
Personal history of colon polyps
These additions, revisions, deletions, and conversions highlight key changes that ensure more accurate diagnoses, treatment plans, and billing for complex conditions.
Benefits of the 2024-2025 ICD 10 Code Changes
i. Improved Accuracy
New codes allow for more precise documentation, particularly in cases like cancer remission and presymptomatic diabetes, improving patient care.
ii. Fewer Billing Errors
With clearer code definitions and updated medical billing codes, the likelihood of claim denials decreases, ensuring smoother financial operations.
iii. Enhanced Compliance
Accurate use of these codes ensures that providers meet regulatory requirements, especially when dealing with complex conditions.
Conclusion
In conclusion, these October 2024 ICD-10-CM updates represent the addition of new codes, modifications, and deletion of codes that are related to many different medical specialties. These changes will not only help in improving the accuracy of documentation and enhancement of the efficiency of the billing process but also advance better patient care. By integrating these updates into your practice, you ensure compliance, reduce claim errors, and streamline your medical coding processes.
For more details on the 2025 ICD-10 code changes, consider reviewing the official CMS documentation here or consult medical coding experts at Transcure to ensure a smooth billing process for your practice.
Frequently Asked Questions (FAQs)
What is the ICD-10-CM update?
This is the yearly update to ICD-10-CM, International Classification of Diseases, 10th Revision, Clinical Modification. New codes are added to this classification; old ones expire; and some of the existing ones are revised to aid providers stay updated with changes in medicine and technology.
From where I can find the official list of 2024 and 2025 ICD-10-CM code updates?
You can easily access this list from CMS’s official website. This official document is also available in the Federal Register.
Will I have to make an update to my EHR system to include the new ICD-10-CM codes?
Yes, ensure that the EHR system and the billing software have the new ICD-10-CM codes updated. This would make the practice less vulnerable to errors and always up-to-date for the latest standards.
