2024 ICD-10-CM Diagnosis Code E70.321

Tyrosinase positive oculocutaneous albinism

ICD-10-CM Code:
E70.321
ICD-10 Code for:
Tyrosinase positive oculocutaneous albinism
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Endocrine, nutritional and metabolic diseases
    (E00–E89)
    • Metabolic disorders
      (E70-E88)
      • Disorders of aromatic amino-acid metabolism
        (E70)

E70.321 is a billable diagnosis code used to specify a medical diagnosis of tyrosinase positive oculocutaneous albinism. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

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

  • Brown oculocutaneous albinism
  • Rufous albinism
  • Tyrosinase-positive oculocutaneous albinism

Clinical Classification

Clinical Information

  • OCA2 wt Allele|BEY|BEY1|BEY2|BOCA|D15S12|EYCL|EYCL2|EYCL3|Eye Color 2 (Central Brown) Gene|Eye Color 3 (Brown) Gene|HCL3|Hair Color 3 (Brown) Gene|OCA2 Melanosomal Transmembrane Protein wt Allele|Oculocutaneous Albinism II (Pink-Eye Dilution Homolog, Mouse) Gene|Oculocutaneous Albinism II Gene|P|P Gene|PED|Pink-Eyed Dilution Gene|SHEP1|Total Brown Iris Pigmentation Gene

    human oca2 wild-type allele is located within 15q12-q13.1 and is approximately 344 kb in length. this allele, which encodes p protein, is involved in eye and skin color. mutations in this gene are associated with type 2 oculocutaneous albinism.
  • OCA5 Gene|Albinism, Oculocutaneous, Type VII Gene|OCA5|OCA5|OCA5|OCA7|Oculocutaneous Albinism 5 (Autosomal Recessive) Gene

    human oca5 gene is located within 4q24 and the size of this phenotypic locus is not reported. this gene region has no known protein product. autosomal recessive mutation of the gene is associated with oculocutaneous albinism 5.
  • Oculocutaneous Albinism

    an autosomal recessive inherited disorder caused by mutations of the oca2, slc45a2, tyr and tyrp1 genes. it is characterized by hypopigmentation of the skin, hair, and eyes, resulting in very fair skin, white colored hair, and reduced pigmentation in the iris and retina. individuals may have vision disturbances and photophobia.
  • Oculocutaneous Albinism Type 1A|OCA1A

    oculocutaneous albinism inherited in an autosomal recessive pattern, and caused by mutation(s) in the tyr gene, encoding tyrosinase.
  • SLC24A5 wt Allele|JSX|NCKX5|OCA6|Oculocutaneous Albinism 6 (Autosomal Recessive) Gene|SHEP4|Solute Carrier Family 24 (Sodium/Potassium/Calcium Exchanger), Member 5 Gene|Solute Carrier Family 24 Member 5 wt Allele|Solute Carrier Family 24, Member 5 Gene

    human slc24a5 wild-type allele is located in the vicinity of 15q21.1 and is approximately 22 kb in length. this allele, which encodes sodium/potassium/calcium exchanger 5 protein, is involved in melanosome pigmentation. mutation of the gene is associated with oculocutaneous albinism type 6.
  • TYR wt Allele|ATN|CMM8|OCA1|OCA1A|OCAIA|SHEP3|Tyrosinase (Oculocutaneous Albinism IA) Gene|Tyrosinase wt Allele

    human tyr wild-type allele is located within 11q14-q21 and is approximately 118 kb in length. this allele, which encodes tyrosinase protein, plays a role in the multi-step biosynthesis of melanin from tyrosine. allelic variants of the tyr gene cause three different types of oculocutaneous albinism.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Albinism II
  • Oculocutaneous albinism ty-pos

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert E70.321 to ICD-9-CM

  • ICD-9-CM Code: 270.2 - Arom amin-acid metab NEC
    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


Eye Diseases

Some eye problems are minor and don't last long. But some can lead to a permanent loss of vision.

Common eye problems include:

  • Refractive errors
  • Cataracts - clouded lenses
  • Optic nerve disorders, including glaucoma
  • Retinal disorders - problems with the nerve layer at the back of the eye
  • Macular degeneration - a disease that destroys sharp, central vision
  • Diabetic eye problems
  • Conjunctivitis - an infection also known as pink eye

Your best defense is to have regular checkups, because eye diseases do not always have symptoms. Early detection and treatment could prevent vision loss. See an eye care professional right away if you have a sudden change in vision, if everything looks dim, or if you see flashes of light. Other symptoms that need quick attention are pain, double vision, fluid coming from the eye, and inflammation.

NIH: National Eye Institute


[Learn More in MedlinePlus]

Skin Pigmentation Disorders

Pigmentation means coloring. Skin pigmentation disorders affect the color of your skin. Your skin gets its color from a pigment called melanin. Special cells in the skin make melanin. When these cells become damaged or unhealthy, it affects melanin production. Some pigmentation disorders affect just patches of skin. Others affect your entire body.

If your body makes too much melanin, your skin gets darker. Pregnancy, Addison's disease, and sun exposure all can make your skin darker. If your body makes too little melanin, your skin gets lighter. Vitiligo is a condition that causes patches of light skin. Albinism is a genetic condition affecting a person's skin. A person with albinism may have no color, lighter than normal skin color, or patchy missing skin color. Infections, blisters and burns can also cause lighter skin.


[Learn More in MedlinePlus]

Oculocutaneous albinism

Oculocutaneous albinism is a group of conditions that affect coloring (pigmentation) of the skin, hair, and eyes. Affected individuals typically have very fair skin and white or light-colored hair. Long-term sun exposure greatly increases the risk of skin damage and skin cancers, including an aggressive form of skin cancer called melanoma, in people with this condition. Oculocutaneous albinism also reduces pigmentation of the colored part of the eye (the iris) and the light-sensitive tissue at the back of the eye (the retina). People with this condition usually have vision problems such as reduced sharpness; rapid, involuntary eye movements (nystagmus); and increased sensitivity to light (photophobia).

Researchers have identified multiple types of oculocutaneous albinism, which are distinguished by their specific skin, hair, and eye color changes and by their genetic cause. Oculocutaneous albinism type 1 is characterized by white hair, very pale skin, and light-colored irises. Type 2 is typically less severe than type 1; the skin is usually a creamy white color and hair may be light yellow, blond, or light brown. Type 3 includes a form of albinism called rufous oculocutaneous albinism, which usually affects dark-skinned people. Affected individuals have reddish-brown skin, ginger or red hair, and hazel or brown irises. Type 3 is often associated with milder vision abnormalities than the other forms of oculocutaneous albinism. Type 4 has signs and symptoms similar to those seen with type 2.

Several additional types of this disorder have been proposed, each affecting one or a few families.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.