S27.339A vs S27.339D
S27.339A (Laceration of lung, unspecified, initial encounter) compared with S27.339D (Laceration of lung, unspecified, subsequent encounter), from the official CMS tabular data. S27.339A and S27.339D code the same injury at a different phase of treatment.
Can these codes be reported together?
Same injury, other encounter phase. S27.339A and S27.339D code the same injury at a different phase of treatment, set by the 7th character.
The 7th character records the type of care given at the encounter being coded (ICD-10-CM Official Guidelines, Section I.C.19.a), so one encounter takes one of these, not both.
Side by side
| S27.339ALaceration of lung, unspecified, initial encounter | S27.339DLaceration of lung, unspecified, subsequent encounter | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Laceration of lung, unspecified, initial encounter is a billable ICD-10-CM diagnosis code (S27.339A). | Laceration of lung, unspecified, subsequent encounter is a billable ICD-10-CM diagnosis code (S27.339D). |
| 7th character | The appropriate 7th character is to be added to each code from category S27 | The appropriate 7th character is to be added to each code from category S27 |
| Includes | injuries of breast injuries of chest (wall) injuries of interscapular area | injuries of breast injuries of chest (wall) injuries of interscapular area |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources