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1 CODING COMPANION 2018 Plastics/Dermatology A comprehensive illustrated guide to coding and reimbursement POWER UP YOUR CODING with Optum360, your trusted coding partner for 32 years. Visit optum360coding.com.

2 Contents Getting Started with Coding Companion...i Skin... 1 Nails Pilonidal Cyst Repair Destruction Breast General Musculoskeletal Head Neck/Thorax Shoulder Humerus/Elbow Forearm/Wrist Hand/Fingers Endoscopy Nose Arteries/Veins Lips Vestibule of Mouth Tongue Palate/Uvula Abdomen Genitalia Extracranial Nerves Ocular Adnexa External Ear Operating Microscope Medicine Services HCPCS Appendix Correct Coding Initiative Update Evaluation and Management Index Contents i

3 Getting Started with Coding Companion is designed to be a guide to the specialty procedures classified in the CPT book. It is structured to help coders understand procedures and translate physician narrative into correct CPT codes by combining many clinical resources into one, easy-to-use source book. The book also allows coders to validate the intended code selection by providing an easy-to-understand explanation of the procedure and associated conditions or indications for performing the various procedures. As a result, data quality and reimbursement will be improved by providing code-specific clinical information and helpful tips regarding the coding of procedures. For ease of use, Coding Companion lists the CPT codes in ascending numeric order. Included in the code set are all surgery, radiology, laboratory, medicine, and evaluation and management (E/M) codes pertinent to the specialty. Each CPT code is followed by its official CPT code description. Resequencing of CPT Codes The American Medical Association (AMA) employs a resequenced numbering methodology. According to the AMA, there are instances where a new code is needed within an existing grouping of codes, but an unused code number is not available to keep the range sequential. In the instance where the existing codes were not changed or had only minimal changes, the AMA assigned a code out of numeric sequence with the other related codes being grouped together. The resequenced codes and their descriptions have been placed with their related codes, out of numeric sequence. CPT codes within the Optum360 Coding Companion series display in their resequenced order. Resequenced codes are enclosed in brackets for easy identification. ICD-10-CM Overall, the 10th revision goes into greater clinical detail than did ICD-9-CM and addresses information about previously classified diseases, as well as those diseases discovered since the last revision. Conditions are grouped with general epidemiological purposes and the evaluation of health care in mind. New features have been added, and conditions have been reorganized, although the format and conventions of the classification remain unchanged for the most part. Detailed Code Information One or more columns are dedicated to each procedure or service or to a series of similar procedures/services. Following the specific CPT code and its narrative, is a combination of features. A sample is shown on page ii. The black boxes with numbers in them correspond to the information on the page following the sample. Appendix Codes and Descriptions Some CPT codes are presented in a less comprehensive format in the appendix. The CPT codes appropriate to the specialty are included in the appendix with the official CPT code description. The codes are presented in numeric order, and each code is followed by an easy-to-understand lay description of the procedure. The codes in the appendix are presented in the following order: Category III Radiology Pathology and Laboratory Medicine Services Category II codes are not published in this book. Refer to the CPT book for code descriptions. CCI Edit Updates The Coding Companion series includes the list of codes from the official Centers for Medicare and Medicaid Services National Correct Coding Policy Manual for Part B Medicare Contractors that are considered to be an integral part of the comprehensive code or mutually exclusive of it and should not be reported separately. The codes in the Correct Coding Initiative (CCI) section are from version 22.3, the most current version available at press time. The CCI edits are located in a section at the back of the book. Optum360 maintains a website to accompany the Coding Companions series and posts updated CCI edits on this website so that current information is available before the next edition. The website address is The 2017 edition password is: SPEC17DLC. Please note that you should log in each quarter to ensure you receive the most current updates. An reminder will also be sent to you to let you know when the updates are available. Evaluation and Management This resource provides documentation guidelines and tables showing evaluation and management (E/M) codes for different levels of care. The components that should be considered when selecting an E/M code are also indicated. Index A comprehensive index is provided for easy access to the codes. The index entries have several axes. A code can be looked up by its procedural name or by the diagnoses commonly associated with it. Codes are also indexed anatomically. For example: Transmastoid antrotomy (simple mastoidectomy) could be found in the index under the following main terms: Antrotomy Transmastoid, Excision Mastoid Simple, General Guidelines Providers The AMA advises coders that while a particular service or procedure may be assigned to a specific section, the service or procedure itself is not limited to use only by that specialty group (see paragraphs two and three under Instructions for Use of the CPT Codebook on page xii of the CPT Book). Additionally, the procedures and services listed throughout the book are for use by any qualified physician or other qualified health care professional or entity (e.g., hospitals, laboratories, or home health agencies). Keep in mind that there may be other policies or guidance that can affect who may report a specific service. Supplies Some payers may allow physicians to separately report drugs and other supplies when reporting the place of service as office or other nonfacility setting. Drugs and supplies are to be reported by the facility only when performed in a facility setting. Professional and Technical Component Radiology and some pathology codes have a technical and a professional component. When physicians do not own their own equipment and send their patients to outside testing facilities, they should append modifier 26 to the procedural code to indicate they performed only the professional component. Getting Started with Coding Companion i

4 Repair Explanation Dermabrasion; regional, other than face The physician performs regional dermabrasion on sites other than the face for conditions such as acne scarring, fine wrinkling, rhytids, and general keratoses. The physician uses a powered rotary instrument to sand down or smooth scarred or wrinkled areas. The physician lowers raised lesions or thins thickened tissue to regenerate skin with a smoother appearance. Coding Tips Because this procedure is sometimes not done out of medical necessity, the patient may be responsible for charges. Verify with the insurance carrier for coverage. For cryotherapy for acne, see 17340; chemical exfoliation for acne, see ICD-10-CM Diagnostic Codes L11.0 L57.0 L70.1 L71.8 L73.0 L81.0 L81.1 L81.3 L82.0 L82.1 L85.1 L85.8 L90.5 L91.0 L98.5 L98.7 L98.8 Z41.1 Acquired keratosis follicularis Actinic keratosis Acne conglobata Other rosacea Acne keloid Postinflammatory hyperpigmentation Chloasma Cafe au lait spots Inflamed seborrheic keratosis Other seborrheic keratosis Acquired keratosis [keratoderma] palmaris et plantaris Other specified epidermal thickening Scar conditions and fibrosis of skin Hypertrophic scar Mucinosis of the skin Excessive and redundant skin and subcutaneous tissue Other specified disorders of the skin and subcutaneous tissue Encounter for cosmetic surgery HCPCS Equivalent Codes Terms To Know acne. Inflammatory skin disease affecting the sebaceous glands and hair follicles resulting in comedones, papular, and pustular skin eruptions. atrophy. Reduction in size or activity in an anatomic structure, due to wasting away from disease or other factors. cryotherapy. Any surgical procedure that uses intense cold for treatment. dermabrasion. Cosmetic procedure that smooths out flaws and disfigured skin and promotes the growth of a new layer of skin cells by removing the outer layer of skin by mechanical or chemical means such as fine sandpaper, wire brushes, and caustic substances. dyschromia. Abnormal pigmentation (coloring) of the hair or skin. fibrosis. Formation of fibrous tissue as part of the restorative process. granulation tissue. Loose collection of fibroblasts, inflammatory cells, and new vessels in an edematous fleshy projection that forms at the base of open wounds over which new skin forms, unless excessive granulation tissue, or proud flesh, rises above the wound surface. hypertrophic. Enlarged or overgrown from an increase in cell size of the affected tissue. keloid. Progressive overgrowth of cutaneous scar tissue that is raised and irregular in shape, caused by excessive formation of collagen during connective tissue repair. late effect. Abnormality, dysfunction, or other residual condition produced after the acute phase of an illness, injury, or disease is over. There is no time limit on when late effects can appear. Medicare Edits Fac RVU * with documentation Non-Fac RVU Modifiers 80* FUD 90 Status A MUE 1(3) Medicare Reference None 142 Repair

5 Explanation Excision external ear; complete amputation Using a scalpel or electric knife, the physician amputates the external ear. The wound is closed during a second procedure involving a skin graft or flap. Coding Tips For reconstruction of the ear, see For skin flap, see or For skin graft, see or ICD-10-CM Diagnostic Codes C43.21 C43.22 C C C C C79.2 C79.89 D03.21 D03.22 D04.21 D04.22 D22.21 D22.22 D23.21 D23.22 D48.5 H60.41 Malignant melanoma of right ear and external auricular Malignant melanoma of left ear and external auricular Basal cell carcinoma of skin of right ear and external auricular Basal cell carcinoma of skin of left ear and external auricular Squamous cell carcinoma of skin of right ear and external auricular Squamous cell carcinoma of skin of left ear and external auricular Secondary malignant neoplasm of skin Secondary malignant neoplasm of other specified sites Melanoma in situ of right ear and external auricular Melanoma in situ of left ear and external auricular Carcinoma in situ of skin of right ear and external auricular Carcinoma in situ of skin of left ear and external auricular Melanocytic nevi of right ear and external auricular Melanocytic nevi of left ear and external auricular Other benign neoplasm of skin of right ear and external auricular Other benign neoplasm of skin of left ear and external auricular Neoplasm of uncertain behavior of skin Cholesteatoma of right external ear H60.42 H60.43 L92.3 M95.11 M95.12 S01.311A S01.312A S01.331A S01.332A S01.351A S01.352A S08.111A S08.112A S08.121A S08.122A Cholesteatoma of left external ear Cholesteatoma of external ear, bilateral Foreign body granuloma of the skin and subcutaneous tissue Cauliflower ear, right ear Cauliflower ear, left ear Laceration without foreign body of right ear, initial encounter Laceration without foreign body of left ear, initial encounter Puncture wound without foreign body of right ear, initial encounter Puncture wound without foreign body of left ear, initial encounter Open bite of right ear, initial encounter Open bite of left ear, initial encounter Complete traumatic amputation of right ear, initial encounter Complete traumatic amputation of left ear, initial encounter Partial traumatic amputation of right ear, initial encounter Partial traumatic amputation of left ear, initial encounter HCPCS Equivalent Codes Terms To Know amputation. Removal of all or part of a limb or digit through the shaft or body of a bone. cholesteatoma. Cyst-like mass of cell debris including cholesterol and epithelial cells found in the middle ear and mastoid, external ear, and following mastoidectomy, resulting from trauma, improperly healed infections, and congenital enclosure of epidermal cells. malignant. Any condition tending to progress toward death, specifically an invasive tumor with a loss of cellular differentiation that has the ability to spread or metastasize to other areas in the body. Medicare Edits Fac RVU * with documentation Non-Fac RVU 11.6 Modifiers FUD 90 Status A MUE 1(3) Medicare Reference None External Ear External Ear 553