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2025 ICD-10-CM code A63.8

Other specified predominantly sexually transmitted diseases.

Code A63.8 should only be used when a more specific code for the STD is not available.It is important to first rule out other specific STDs before using this code.Always refer to the most updated ICD-10-CM coding guidelines.

Medical necessity is established by the presence of signs and symptoms suggestive of an STD, coupled with supporting clinical findings and/or laboratory tests.As A63.8 is for unspecified STDs, the medical necessity must clearly be documented to justify the diagnosis and subsequent treatment.

Diagnosis based on patient's exposure history, physical examination, and laboratory tests. Treatment includes antibiotics for bacterial, parasitic, and yeast infections, symptomatic treatment for viral STDs, and patient education on prevention and early detection.

In simple words: This code refers to a sexually transmitted infection or disease that is not specifically listed elsewhere in the coding system.

Sexually transmitted diseases (STDs) not otherwise specified. This code is used for STDs that are not represented by other codes within the A50-A64 range.

Example 1: A patient presents with symptoms suggestive of an STD, but tests for common STDs like chlamydia, gonorrhea, and syphilis are negative. After further investigation, a rare STD is identified, necessitating the use of A63.8., A patient with a known history of multiple sexual partners presents with genital lesions. Standard STD tests are negative, and the diagnosis remains unclear. The provider may use A63.8 to document the condition while awaiting further test results or specialist consultation., A patient presents with symptoms consistent with an STD, but the causative organism is not identifiable through standard testing. In such cases, A63.8 may be used to document the sexually transmitted nature of the illness when a definitive diagnosis cannot be made.

Documentation should include details of the patient's sexual history, signs and symptoms, results of laboratory tests performed to rule out other STDs, and any other clinical findings that support the diagnosis of a predominantly sexually transmitted disease.

** Excludes1: nonspecific and nongonococcal urethritis (N34.1) Reiter's disease (M02.3-) Excludes2: human immunodeficiency virus [HIV] disease (B20) molluscum contagiosum (B08.1) papilloma of cervix (D26.0).

  • Specialties:Infectious Disease, Urology, Obstetrics and Gynecology, Dermatology, Internal Medicine, Family Medicine
  • Place of Service:Office, Inpatient Hospital, Outpatient Hospital, Clinic
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