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S25.421D vs S25.429D

S25.421D (Major laceration of right pulmonary blood vessels, subsequent encounter) compared with S25.429D (Major laceration of unspecified pulmonary blood vessels, subsequent encounter), from the official CMS tabular data. S25.421D and S25.429D code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S25.421D
Right
Major laceration of right pulmonary blood vessels, subsequent encounter
S25.429D
Unspecified
Major laceration of unspecified pulmonary blood vessels, subsequent encounter

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. S25.421D and S25.429D name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

S25.421DMajor laceration of right pulmonary blood vessels, subsequent encounterS25.429DMajor laceration of unspecified pulmonary blood vessels, subsequent encounter
Billing statusBillableBillable
ClassificationS00-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)
DefinitionMajor laceration of right pulmonary blood vessels, subsequent encounter is a billable ICD-10-CM diagnosis code (S25.421D).Major laceration of unspecified pulmonary blood vessels, subsequent encounter is a billable ICD-10-CM diagnosis code (S25.429D).
7th characterThe appropriate 7th character is to be added to each code from category S25The appropriate 7th character is to be added to each code from category S25
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