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S99.142 vs S99.149

S99.142 (Salter-Harris Type IV physeal fracture of left metatarsal) compared with S99.149 (Salter-Harris Type IV physeal fracture of unspecified metatarsal), from the official CMS tabular data. S99.142 and S99.149 code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

S99.142
Left
Salter-Harris Type IV physeal fracture of left metatarsal
S99.149
Unspecified
Salter-Harris Type IV physeal fracture of unspecified metatarsal

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. S99.142 and S99.149 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

S99.142Salter-Harris Type IV physeal fracture of left metatarsalS99.149Salter-Harris Type IV physeal fracture of unspecified metatarsal
Billing statusNon-billable header

Report instead: S99.142A, S99.142B, S99.142D, S99.142G, S99.142K

Non-billable header

Report instead: S99.149A, S99.149B, S99.149D, S99.149G, S99.149K

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)
DefinitionSalter-Harris Type IV physeal fracture of left metatarsal is a non-billable ICD-10-CM category code (S99.142).Salter-Harris Type IV physeal fracture of unspecified metatarsal is a non-billable ICD-10-CM category code (S99.149).
7th characterThe appropriate 7th character is to be added to each code from subcategories S99.1The appropriate 7th character is to be added to each code from subcategories S99.1

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources