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S21.131S vs S21.139S

S21.131S (Puncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity, sequela) compared with S21.139S (Puncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela), from the official CMS tabular data. S21.131S and S21.139S code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S21.131S
Right
Puncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity, sequela
↔
S21.139S
Unspecified
Puncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela

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. S21.131S and S21.139S 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

S21.131SPuncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity, sequelaS21.139SPuncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela
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)
DefinitionPuncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity, sequela is a billable ICD-10-CM diagnosis code (S21.131S).Puncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela is a billable ICD-10-CM diagnosis code (S21.139S).
7th characterThe appropriate 7th character is to be added to each code from category S21The appropriate 7th character is to be added to each code from category S21
Includes
injuries of breast
injuries of chest (wall)
injuries of interscapular area
injuries of breast
injuries of chest (wall)
injuries of interscapular area
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources