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Unlease the revenue potential of your practice: Mastering Medical billing.

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Medical coding lies at the heart of administrative and financial operations within the healthcare industry. For speech therapists, having a firm grasp of coding systems such as ICD and HCPCS is pivotal to effectively documenting patient conditions justifying treatments, and getting reimbursed for services.

This guide provides an overview of these two coding languages, explaining how ICD codes classify diagnoses while HCPCS codes identify procedures, supplies, and services. Becoming fluent in ICD and HCPCS opens doors to more insightful data analysis, accurate billing, and favorable reimbursement rates.

What is the main role of speech therapy?

Speech dramatically enhances the ability to communicate desires, needs, thoughts, and emotions to healthcare providers, caregivers, and loved ones. Thus, speech, language, eating, and swallowing therapists help children and adults with life-changing treatment, support, and care.

They evaluate patients for language and speech disorders and provide treatment to help them communicate better and have a better quality of life. Those with trouble communicating due to mental or physical disabilities benefit from this.

What is an ICD-10 diagnosis code?

Diseases, disorders, traumas, symptoms, and conditions can all be recorded and classified using the alphanumeric codes known as ICD-10 diagnosis codes. These are a part of the globally accepted medical classification system known as the International Classification of Diseases, Tenth Revision (ICD-10). Each diagnosis code helps the healthcare industry’s billing, reimbursement, and statistical analysis by providing detailed information about a patient’s diagnosis.

Most Significant ICD-10 Codes – Speech Therapy:

Familiarity with the most relevant ICD-10 codes is essential for speech therapists to ensure comprehensive and effective patient care while navigating the complexities of healthcare documentation and reimbursement.

The following are provided the most significant ICD-10 codes used in speech therapy procedures by therapists to smoothen the billing procedures.

  1.     F80 – Developmental disorders of speech and language:

F80 is the ICD-10 code for speech and language developmental diseases like expressive language and phonological disorders. This code helps professionals classify and monitor certain illnesses for treatment and billing.

Side effects may include:

  • Missing a sound (saying “pay” rather than “play”)
  • Saying “fog” instead of “dog” to switch one sound for another
  1.     F80.4 – Speech and language development by a hearing loss:

Delay in speech and language development due to hearing loss. This code classifies and documents hearing-related speech and language delays.

It assists healthcare workers in diagnosing, tracking, and treating this medical condition.

  1.     F80.81 – Childhood-onset fluency disorder:

It is a speech loss that first appears in childhood and causes problems with the natural rhythm and flow of speech. Stuttering is a speech disorder that makes it difficult for a person to communicate clearly, which is typically covered in this code.

  1.     F80.2 — Mixed receptive-expressive language disorder:

A weakness in receptive and expressive language skills characterizes the condition identified by ICD-10 code F80.2.

Side effects may include:

  • Weak vocabulary
  • inability to express themselves orally
  • Verbal and spatial impairment


  1.     R13.11 — Dysphagia, oral phase:

This code is for dysphagia, a swallowing disorder. This code is for dysphagia, a swallowing disorder. This includes chewing or moving food to the back of the mouth.

Side effects may include:

  •  Salivate
  •   Odynophagia (swallowing pain)
  •   Frequently experiencing heartburn and having food or stomach acid spill into your throat.
  •   Hearing loss


  1.     R13.12 — Dysphagia, oropharyngeal phase:

Oropharyngeal dysphagia (R13.12) is a medical term for patients who have trouble swallowing due to complications of the mouth and throat, such as difficulty chewing or bringing food to the back of the mouth.

Side effects may include:

  •  Reporting the sensation of having food trapped in your throat
  •  Coughing, choking, and salivating
  •  Difficulties consuming enough food or liquids
  •  Cancer, particularly some types with mouth or throat tumors, and radiation therapy for cancer


  1.     R47.1 — Dysarthria and anarthria:

The ICD-10 code R47.1 is used to identify anarthria and dysarthria. Slurred or unclear speech results from the motor speech disorder dysarthria, which reduces the muscles used for speech. On the other side, anarthria is the inability to speak due to losing tongue, lip, and throat muscle control.

Side effects may include:

  •   Limited lip, jaw, and tongue movement
  •   Improper voice pitch
  •  Lack of capacity to speak loudly 
  •   Slowed pitch 
  •   Whispering


  1.     R48.2 — Apraxia:

A neurological disorder known as apraxia of speech, coded as R48.2, affects the patient’s ability to move their mouth and tongue when speaking.

Side effects may include; issues in speaking longer sentences or stuttering. 

  1.     R48.8 — Other symbolic dysfunctions:

Speech problems are recorded as the first-listed diagnosis under code R48.8. It should only be utilized if a patient has been diagnosed with central auditory processing disorder (CAPD).

However, use code F80.2 (mixed receptive-expressive language disorder, developmental) mentioned above for an auditory processing loss if an audiologist still needs to diagnose CAPD.

  1. R63.3 — Feeding difficulties:

Difficulty cleaning the mouth of residue, difficulty establishing feeding, dependency on consuming food, chewing finding, and problem chewing are all conditions that can be diagnosed with the code R63.3.

Those with sensory food aversions or developmental delays may use this code. It doesn’t include issues with infant feeding or eating disorders.

Other Important ICD-10 Codes for Speech Therapy:

  1.     H91 – Other and unspecified hearing loss:

Cases of hearing loss that cannot be classified into any specific category or are not further described are categorized using this code.

  1. I69 – Sequelae of cerebrovascular disease:

This code is used to identify the presence of post-cerebrovascular problems or persistent consequences from a stroke.

  1. Z81 – Family history of mental and behavioral disorders:

When a patient has a known family history of mental or behavioral disorders, this code indicates a possible genetic or familial risk factor.

What are HCPCS codes used for?

HCPCS codes, which stand for Healthcare Common Procedure Coding System, are used for various purposes in the healthcare industry. These codes are primarily used in the United States healthcare system, particularly for Medicare and Medicaid billing.

It is a standardized code collection representing medical procedures, supplies, products, and services. They facilitate the processing of health insurance claims by Medicare and other insurers.

Most Significant HCPCS Codes – Speech Therapy

HCPCS in speech therapy procedures plays a significant role. These codes help track and bill services such as therapeutic interventions, assistive devices, and other equipment used to improve patient communication and speech skills. The most common codes are given as under.

  1. G0040 – Patient already receiving physical/occupational/speech/recreational therapy during the measurement period:

When a patient is already engaged in some form of therapy throughout the assessment period, such as physical, occupational, speech, or recreational therapy, this HCPCS code might be used to reflect that fact. In the medical industry, such information is used for patient billing.

  1. G0042 – Referral to physical, occupational, speech, or recreational therapy:

This HCPCS code is reported when a patient is recommended for therapeutic services, including physical, occupational, speech, and recreational therapy. It’s what hospitals and physicians use for patient billing.

  1. H2001 – Rehabilitation program, per 1/2 day:

Half-day rehabilitation services are billed using this HCPCS code. Medical care providers can use it to get paid for their work with patients in the rehabilitation process.

  1. S9128 – Speech therapy, in the home, per diem:

Speech therapy services delivered in the patient’s home are billed using this HCPCS code on a daily basis. Medical professionals can use it to charge patients for speech therapy services rendered in their homes.

  1. S9152 – Speech therapy, re-evaluation: The patient’s speech therapies are reevaluated and billed for using this HCPCS code. Medical professionals can use it to charge for a new assessment of the patient’s speech therapy need.
  2. G0153 – Services performed by a qualified speech-language pathologist:

This code is utilized for billing for speech-language pathology services rendered by a licensed practitioner on a 15-minute basis in a home health or hospital setting.

  1. G0161 – Services performed by a qualified speech-language pathologist in the establishment or delivery of a safe and effective speech-language pathology maintenance program every 15 minutes:

This HCPCS code is used for billing for 15-minute-long speech-language pathology services delivered in a home health setting by an authorized practitioner in the establishment or execution of a secure and reliable maintenance program.

  1. G4034 – Speech-language pathology mips specialty set:

Billing for a speech-language pathology MIPS specialty set is carried out using this HCPCS code. Healthcare providers may use it to submit claims for speech-language pathology services they have given patients as part of the MIPS program.

  1. V5363 – Language screening:

A language assessment is billed for using this code. Medical care providers may employ it to get reimbursed for language evaluations of their patients.


To deliver high-quality care, speech therapists must master using ICD and HCPCS codes. The diagnosis, treatment, and billing all depend on these codes. They can help their patients communicate more effectively and efficiently by cracking them

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