S27.31 is the authoritative medical code for Primary blast injury of lung. This classification is used in medical billing and clinical recording to specify the clinical criteria for primary blast injury of lung (ICD-10-CM S27.31), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Primary blast injury of lung is a non-billable ICD-10-CM category code S27.31. A more specific billable subcode must be selected for claims submission. Includes: injuries of breast; injuries of chest wall; injuries of interscapular area. Inclusion terms: Blast injury of lung NOS. Excludes2 (not included here): injury of cervical esophagus S10-S19; injury of trachea cervical S10-S19; burns and corrosions T20-T32; effects of foreign body in bronchus T17.5; effects of foreign body in esophagus T18.1; effects of foreign body in lung T17.8; effects of foreign body in trachea T17.4; frostbite T33-T34; injuries of axilla; injuries of clavicle; injuries of scapular region; injuries of shoulder; insect bite or sting, venomous T63.4. Code also: any associated open wound of thorax S21.-. 7th character: The appropriate 7th character is to be added to each code from category S27.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S27.31 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- injuries of breast
- injuries of chest wall
- injuries of interscapular area
Inclusion Terms
Alternative terms the tabular list files under this code.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- injury of cervical esophagus S10-S19
- injury of trachea cervical S10-S19
- burns and corrosions T20-T32
- effects of foreign body in bronchus T17.5
- effects of foreign body in esophagus T18.1
- effects of foreign body in lung T17.8
- effects of foreign body in trachea T17.4
- frostbite T33-T34
- injuries of axilla
- injuries of clavicle
- injuries of scapular region
- injuries of shoulder
- insect bite or sting, venomous T63.4
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated open wound of thorax S21.-
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S27.31 be billed directly?
No. S27.31 (Primary blast injury of lung) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S27.31 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S27.
Can S27.31 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, S27.31 and the following are not considered part of each other and may both be reported when both conditions are present: injury of cervical esophagus (S10-S19); injury of trachea (cervical) (S10-S19); burns and corrosions (T20-T32); effects of foreign body in bronchus (T17.5).
What conditions are included under S27.31?
Primary blast injury of lung includes: Blast injury of lung NOS.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S27.31 in its code family, with their registry titles.
- S27 — Injury of other and unspecified intrathoracic organs
- S27.0 — Traumatic pneumothorax
- S27.0XXA — Traumatic pneumothorax, initial encounter
- S27.0XXD — Traumatic pneumothorax, subsequent encounter
- S27.0XXS — Traumatic pneumothorax, sequela
- S27.1 — Traumatic hemothorax
- S27.1XXA — Traumatic hemothorax, initial encounter
- S27.1XXD — Traumatic hemothorax, subsequent encounter
- S27.1XXS — Traumatic hemothorax, sequela
- S27.2 — Traumatic hemopneumothorax
View all 40 codes in the S27 family