H35.121 - Retinopathy of prematurity, stage 1, right eye

Version 2023
ICD-10:H35.121
Short Description:Retinopathy of prematurity, stage 1, right eye
Long Description:Retinopathy of prematurity, stage 1, right eye
Status: Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of choroid and retina (H30-H36)
      • Other retinal disorders (H35)

H35.121 is a billable ICD-10 code used to specify a medical diagnosis of retinopathy of prematurity, stage 1, right eye. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Convert to ICD-9 Code

Source ICD-10 CodeTarget ICD-9 Code
H35.121362.23 - Retinoph prematr,stage 1
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Premature Babies

Almost 1 of every 10 infants born in the United States are premature, or preemies. A premature birth is when a baby is born before 37 completed weeks of pregnancy. A full-term pregnancy is 40 weeks.

Important growth and development happen throughout pregnancy - especially in the final months and weeks. Because they are born too early, preemies weigh much less than full-term babies. They may have health problems because their organs did not have enough time to develop. Problems that a baby born too early may have include:

Preemies need special medical care in a neonatal intensive care unit, or NICU. They stay there until their organ systems can work on their own.

Centers for Disease Control and Prevention


[Learn More in MedlinePlus]

Retinal Disorders

The retina is a layer of tissue in the back of your eye that senses light and sends images to your brain. In the center of this nerve tissue is the macula. It provides the sharp, central vision needed for reading, driving and seeing fine detail.

Retinal disorders affect this vital tissue. They can affect your vision, and some can be serious enough to cause blindness. Examples are:

NIH: National Eye Institute


[Learn More in MedlinePlus]

Code History