The correct ICD-10-CM coding for this patient is B20, M54.50. The first code, B20, is used for HIV disease, which is a confirmed diagnosis of HIV infection. It’s important to note that this code can be used regardless of whether the patient is symptomatic or asymptomatic, as long as the patient has been diagnosed with HIV.
The second code, M54.50, refers to low back pain, which would be used to report the loin pain described by the patient. " Loin pain " typically refers to pain in the lower back area, and this code specifically covers the general category of low back pain not otherwise specified.
The other options are not as accurate:
A (B20, M54.9) includes a nonspecific code for back pain (M54.9), which does not fully specify the pain’s location.
B (M54.51, B20) incorrectly includes a code for thoracic or lumbar radiculopathy (M54.51), which is not indicated here.
D (M54.50, B20) is similar to the correct answer, but it incorrectly lists the codes in reverse order. It is important to list the HIV diagnosis first in ICD-10-CM.
Reference topics: ICD-10-CM Coding for HIV Disease; Pain Coding
