H05.043

Tenonitis of bilateral orbits

FY2027Chapter 7: Diseases of the eye and adnexa/H00–H05 Disorders of eyelid, lacrimal system and orbit

BillableComplete code, valid to report

H05.043 (also written H05043) is a billable ICD-10-CM diagnosis code for tenonitis of bilateral orbits. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 102 codes in category H05 (Disorders of orbit). Its coding notes include 1 Excludes1 entry and 13 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Inherited from H05 Disorders of orbit
  • congenital malformation of orbit (Q10.7)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (13 notes)
Inherited from H00–H05 Disorders of eyelid, lacrimal system and orbit
Inherited from Chapter 7 Diseases of the eye and adnexa
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury (trauma) of eye and orbit (S05.-)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Home Health Primary

Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Other clinical group.

Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 7 Diseases of the eye and adnexa
  • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition