October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

H05 Disorders of orbit

All 102 codes in the H05 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

102

Can lead a claim

76

Cannot lead a claim

26

What CMS assigns to H05

76 of the 102 codes group to MMTA - Other; 26 are assigned no clinical group. None of the 102 is assigned a comorbidity subgroup. 76 of the 102 can lead a claim.

Every code in H05

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
H05.0 Acute inflammation of orbit
H05.00Unspecified acute inflammation of orbitCan lead a claimANone
H05.01 Cellulitis of orbit
H05.011Cellulitis of right orbitCan lead a claimANone
H05.012Cellulitis of left orbitCan lead a claimANone
H05.013Cellulitis of bilateral orbitsCan lead a claimANone
H05.019Cellulitis of unspecified orbitCannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the conditionNoneNone
H05.02 Osteomyelitis of orbit
H05.021Osteomyelitis of right orbitCan lead a claimANone
H05.022Osteomyelitis of left orbitCan lead a claimANone
H05.023Osteomyelitis of bilateral orbitsCan lead a claimANone
H05.029Osteomyelitis of unspecified orbitCannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the conditionNoneNone
H05.03 Periostitis of orbit
H05.031Periostitis of right orbitCan lead a claimANone
H05.032Periostitis of left orbitCan lead a claimANone
H05.033Periostitis of bilateral orbitsCan lead a claimANone
H05.039Periostitis of unspecified orbitCannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the conditionNoneNone
H05.04 Tenonitis of orbit
H05.041Tenonitis of right orbitCan lead a claimANone
H05.042Tenonitis of left orbitCan lead a claimANone
H05.043Tenonitis of bilateral orbitsCan lead a claimANone
H05.049Tenonitis of unspecified orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.1 Chronic inflammatory disorders of orbit
H05.10Unspecified chronic inflammatory disorders of orbitCan lead a claimANone
H05.11 Granuloma of orbit
H05.111Granuloma of right orbitCan lead a claimANone
H05.112Granuloma of left orbitCan lead a claimANone
H05.113Granuloma of bilateral orbitsCan lead a claimANone
H05.119Granuloma of unspecified orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.12 Orbital myositis
H05.121Orbital myositis, right orbitCan lead a claimANone
H05.122Orbital myositis, left orbitCan lead a claimANone
H05.123Orbital myositis, bilateralCan lead a claimANone
H05.129Orbital myositis, unspecified orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.2 Exophthalmic conditions
H05.20Unspecified exophthalmosCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.21 Displacement (lateral) of globe
H05.211Displacement (lateral) of globe, right eyeCan lead a claimANone
H05.212Displacement (lateral) of globe, left eyeCan lead a claimANone
H05.213Displacement (lateral) of globe, bilateralCan lead a claimANone
H05.219Displacement (lateral) of globe, unspecified eyeCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.22 Edema of orbit
H05.221Edema of right orbitCan lead a claimANone
H05.222Edema of left orbitCan lead a claimANone
H05.223Edema of bilateral orbitCan lead a claimANone
H05.229Edema of unspecified orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.23 Hemorrhage of orbit
H05.231Hemorrhage of right orbitCan lead a claimANone
H05.232Hemorrhage of left orbitCan lead a claimANone
H05.233Hemorrhage of bilateral orbitCan lead a claimANone
H05.239Hemorrhage of unspecified orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.24 Constant exophthalmos
H05.241Constant exophthalmos, right eyeCan lead a claimANone
H05.242Constant exophthalmos, left eyeCan lead a claimANone
H05.243Constant exophthalmos, bilateralCan lead a claimANone
H05.249Constant exophthalmos, unspecified eyeCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.25 Intermittent exophthalmos
H05.251Intermittent exophthalmos, right eyeCan lead a claimANone
H05.252Intermittent exophthalmos, left eyeCan lead a claimANone
H05.253Intermittent exophthalmos, bilateralCan lead a claimANone
H05.259Intermittent exophthalmos, unspecified eyeCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.26 Pulsating exophthalmos
H05.261Pulsating exophthalmos, right eyeCan lead a claimANone
H05.262Pulsating exophthalmos, left eyeCan lead a claimANone
H05.263Pulsating exophthalmos, bilateralCan lead a claimANone
H05.269Pulsating exophthalmos, unspecified eyeCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.3 Deformity of orbit
H05.30Unspecified deformity of orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.31 Atrophy of orbit
H05.311Atrophy of right orbitCan lead a claimANone
H05.312Atrophy of left orbitCan lead a claimANone
H05.313Atrophy of bilateral orbitCan lead a claimANone
H05.319Atrophy of unspecified orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.32 Deformity of orbit due to bone disease
H05.321Deformity of right orbit due to bone diseaseCan lead a claimANone
H05.322Deformity of left orbit due to bone diseaseCan lead a claimANone
H05.323Deformity of bilateral orbits due to bone diseaseCan lead a claimANone
H05.329Deformity of unspecified orbit due to bone diseaseCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.33 Deformity of orbit due to trauma or surgery
H05.331Deformity of right orbit due to trauma or surgeryCan lead a claimANone
H05.332Deformity of left orbit due to trauma or surgeryCan lead a claimANone
H05.333Deformity of bilateral orbits due to trauma or surgeryCan lead a claimANone
H05.339Deformity of unspecified orbit due to trauma or surgeryCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.34 Enlargement of orbit
H05.341Enlargement of right orbitCan lead a claimANone
H05.342Enlargement of left orbitCan lead a claimANone
H05.343Enlargement of bilateral orbitsCan lead a claimANone
H05.349Enlargement of unspecified orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.35 Exostosis of orbit
H05.351Exostosis of right orbitCan lead a claimANone
H05.352Exostosis of left orbitCan lead a claimANone
H05.353Exostosis of bilateral orbitsCan lead a claimANone
H05.359Exostosis of unspecified orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.4 Enophthalmos
H05.40 Unspecified enophthalmos
H05.401Unspecified enophthalmos, right eyeCan lead a claimANone
H05.402Unspecified enophthalmos, left eyeCan lead a claimANone
H05.403Unspecified enophthalmos, bilateralCan lead a claimANone
H05.409Unspecified enophthalmos, unspecified eyeCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.41 Enophthalmos due to atrophy of orbital tissue
H05.411Enophthalmos due to atrophy of orbital tissue, right eyeCan lead a claimANone
H05.412Enophthalmos due to atrophy of orbital tissue, left eyeCan lead a claimANone
H05.413Enophthalmos due to atrophy of orbital tissue, bilateralCan lead a claimANone
H05.419Enophthalmos due to atrophy of orbital tissue, unspecified eyeCMS: Enophthalmos due to atrophy of orbital tissue, unsp eyeCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.42 Enophthalmos due to trauma or surgery
H05.421Enophthalmos due to trauma or surgery, right eyeCan lead a claimANone
H05.422Enophthalmos due to trauma or surgery, left eyeCan lead a claimANone
H05.423Enophthalmos due to trauma or surgery, bilateralCan lead a claimANone
H05.429Enophthalmos due to trauma or surgery, unspecified eyeCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.5 Retained (old) foreign body following penetrating wound of orbit
H05.50Retained (old) foreign body following penetrating wound of unspecified orbitCMS: Retained (old) fb following penetrating wound of unsp orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.51Retained (old) foreign body following penetrating wound of right orbitCMS: Retained (old) fb following penetrating wound of right orbitCan lead a claimANone
H05.52Retained (old) foreign body following penetrating wound of left orbitCMS: Retained (old) fb following penetrating wound of left orbitCan lead a claimANone
H05.53Retained (old) foreign body following penetrating wound of bilateral orbitsCMS: Retained (old) fb following penetrating wound of bi orbitCan lead a claimANone
H05.8 Other disorders of orbit
H05.81 Cyst of orbit
H05.811Cyst of right orbitCan lead a claimANone
H05.812Cyst of left orbitCan lead a claimANone
H05.813Cyst of bilateral orbitsCan lead a claimANone
H05.819Cyst of unspecified orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.82 Myopathy of extraocular muscles
H05.821Myopathy of extraocular muscles, right orbitCan lead a claimANone
H05.822Myopathy of extraocular muscles, left orbitCan lead a claimANone
H05.823Myopathy of extraocular muscles, bilateralCan lead a claimANone
H05.829Myopathy of extraocular muscles, unspecified orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone
H05.83 Thyroid orbitopathy
H05.831Thyroid orbitopathy, right orbitCan lead a claimANone
H05.832Thyroid orbitopathy, left orbitCan lead a claimANone
H05.833Thyroid orbitopathy, bilateralCan lead a claimANone
H05.839Thyroid orbitopathy, unspecified orbitCan lead a claimANone
H05.89Other disorders of orbitCan lead a claimANone
H05.9Unspecified disorder of orbitCannot lead a claimPrincipal diagnosis not assigned to a clinical groupNoneNone

Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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