ENM Institute of Medical Coding

Medical Coding Blog & Vlogs

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Weekly medical coding learning resources

Read practical articles and watch video explainers covering medical coding concepts, HCC coding, Emergency Department / E&M coding, denial management, CPC/CCS preparation and certification renewal. New posts are published when available; please check back regularly.

October 24, 2026

Denial Management-Part 2

Coding denials in Hospital Billing (HB) are not always caused by “wrong coding.” A facility claim can deny when the codes reported on the…

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October 22, 2026

Denial Management-Part 1

A claim denial is not just a billing problem. It’s a process problem. In U.S. healthcare, many denials can be traced back to issues…

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ICD10-CM UPDATE 2027

The FY 2027 ICD-10-CM diagnosis code update is effective October 1, 2026 through September 30, 2027. The release adds 190 codes, deletes 30, and revises 4 code titles.

Some key areas to watch:

• Pregnancy: more detail for ectopic pregnancy and continuing pregnancy after vanishing twin syndrome
• Toxic effects: new code families for specific substances, with intent and encounter phase detail
• Musculoskeletal conditions: added diagnoses and more laterality detail
• Genetic disorders: Chapter 17 now expressly includes genetic disorders, including inherited cancer-predisposition syndromes
• Other updates: added specificity for cardiac conditions, pelvic diseases, exposure history, and BMI

Always verify the exact code, instructions, and effective date in the official code files and guidelines. This is a short overview, not a substitute for the full coding references.

Follow ENM Institute of Medical Coding for more coding updates.

Sources: CDC/NCHS FY 2027 files | CMS ICD-10 files