Injury of heart (S26) ICD-10-CM
The S26 code range covers injury of heart with 61 ICD-10-CM diagnosis codes. 42 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- any associated:
- open wound of thorax S21
- traumatic hemopneumothorax S27.2
- traumatic hemothorax S27.1
- traumatic pneumothorax S27.0
7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- The appropriate 7th character is to be added to each code from category S26
7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
- A - initial encounter
- D - subsequent encounter
- S - sequela
Codes in the S26 Range 61 codes · 42 billable
- S26 Injury of heartNon-billable
- S26.0 Injury of heart with hemopericardiumNon-billable
- S26.00 Unspecified injury of heart with hemopericardiumNon-billable
- S26.00XA Unspecified injury of heart with hemopericardium, initial encounter
- S26.00XD Unspecified injury of heart with hemopericardium, subsequent encounter
- S26.00XS Unspecified injury of heart with hemopericardium, sequela
- S26.01 Contusion of heart with hemopericardiumNon-billable
- S26.01XA Contusion of heart with hemopericardium, initial encounter
- S26.01XD Contusion of heart with hemopericardium, subsequent encounter
- S26.01XS Contusion of heart with hemopericardium, sequela
- S26.02 Laceration of heart with hemopericardiumNon-billable
- S26.020 Mild laceration of heart with hemopericardiumNon-billable
- S26.020A Mild laceration of heart with hemopericardium, initial encounter
- S26.020D Mild laceration of heart with hemopericardium, subsequent encounter
- S26.020S Mild laceration of heart with hemopericardium, sequela
- S26.021 Moderate laceration of heart with hemopericardiumNon-billable
- S26.021A Moderate laceration of heart with hemopericardium, initial encounter
- S26.021D Moderate laceration of heart with hemopericardium, subsequent encounter
- S26.021S Moderate laceration of heart with hemopericardium, sequela
- S26.022 Major laceration of heart with hemopericardiumNon-billable
- S26.022A Major laceration of heart with hemopericardium, initial encounter
- S26.022D Major laceration of heart with hemopericardium, subsequent encounter
- S26.022S Major laceration of heart with hemopericardium, sequela
- S26.09 Other injury of heart with hemopericardiumNon-billable
- S26.09XA Other injury of heart with hemopericardium, initial encounter
- S26.09XD Other injury of heart with hemopericardium, subsequent encounter
- S26.09XS Other injury of heart with hemopericardium, sequela
- S26.1 Injury of heart without hemopericardiumNon-billable
- S26.10 Unspecified injury of heart without hemopericardiumNon-billable
- S26.10XA Unspecified injury of heart without hemopericardium, initial encounter
- S26.10XD Unspecified injury of heart without hemopericardium, subsequent encounter
- S26.10XS Unspecified injury of heart without hemopericardium, sequela
- S26.11 Contusion of heart without hemopericardiumNon-billable
- S26.11XA Contusion of heart without hemopericardium, initial encounter
- S26.11XD Contusion of heart without hemopericardium, subsequent encounter
- S26.11XS Contusion of heart without hemopericardium, sequela
- S26.12 Laceration of heart without hemopericardiumNon-billable
- S26.12XA Laceration of heart without hemopericardium, initial encounter
- S26.12XD Laceration of heart without hemopericardium, subsequent encounter
- S26.12XS Laceration of heart without hemopericardium, sequela
- S26.19 Other injury of heart without hemopericardiumNon-billable
- S26.19XA Other injury of heart without hemopericardium, initial encounter
- S26.19XD Other injury of heart without hemopericardium, subsequent encounter
- S26.19XS Other injury of heart without hemopericardium, sequela
- S26.9 Injury of heart, unspecified with or without hemopericardiumNon-billable
- S26.90 Unspecified injury of heart, unspecified with or without hemopericardiumNon-billable
- S26.90XA Unspecified injury of heart, unspecified with or without hemopericardium, initial encounter
- S26.90XD Unspecified injury of heart, unspecified with or without hemopericardium, subsequent encounter
- S26.90XS Unspecified injury of heart, unspecified with or without hemopericardium, sequela
- S26.91 Contusion of heart, unspecified with or without hemopericardiumNon-billable
- S26.91XA Contusion of heart, unspecified with or without hemopericardium, initial encounter
- S26.91XD Contusion of heart, unspecified with or without hemopericardium, subsequent encounter
- S26.91XS Contusion of heart, unspecified with or without hemopericardium, sequela
- S26.92 Laceration of heart, unspecified with or without hemopericardiumNon-billable
- S26.92XA Laceration of heart, unspecified with or without hemopericardium, initial encounter
- S26.92XD Laceration of heart, unspecified with or without hemopericardium, subsequent encounter
- S26.92XS Laceration of heart, unspecified with or without hemopericardium, sequela
- S26.99 Other injury of heart, unspecified with or without hemopericardiumNon-billable
- S26.99XA Other injury of heart, unspecified with or without hemopericardium, initial encounter
- S26.99XD Other injury of heart, unspecified with or without hemopericardium, subsequent encounter
- S26.99XS Other injury of heart, unspecified with or without hemopericardium, sequela
About the S26 Code Range
Heart injuries in this part of the chest injury classification are grouped by whether hemopericardium, blood around the heart, is present.
S26.0 identifies injuries with hemopericardium, S26.1 identifies those without it, and S26.9 leaves that detail unspecified. Each group separates unspecified injuries, contusions (bruises), lacerations (tears), and other injuries. Lacerations with hemopericardium split further into mild, moderate, and major.
The seventh character distinguishes an initial encounter, a subsequent encounter, or a sequela, meaning a lasting effect of the injury.
Questions About This Page
How many billable codes are in the S26 range?
Of the 61 codes in this range, 42 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the S26 range classify?
The range classifies injury of heart. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
