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H10.021 vs H10.029

H10.021 (Other mucopurulent conjunctivitis, right eye) compared with H10.029 (Other mucopurulent conjunctivitis, unspecified eye), from the official CMS tabular data. H10.021 and H10.029 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

H10.021
Right
Other mucopurulent conjunctivitis, right eye
H10.029
Unspecified
Other mucopurulent conjunctivitis, unspecified eye

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. H10.021 and H10.029 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

H10.021Other mucopurulent conjunctivitis, right eyeH10.029Other mucopurulent conjunctivitis, unspecified eye
Billing statusBillableBillable
ClassificationH00-H59 — Diseases of the Eye and Adnexa (H00-H59)H00-H59 — Diseases of the Eye and Adnexa (H00-H59)
DefinitionOther mucopurulent conjunctivitis, right eye is a billable ICD-10-CM diagnosis code (H10.021).Other mucopurulent conjunctivitis, unspecified eye is a billable ICD-10-CM diagnosis code (H10.029).

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