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Introduction to ICD-9-CM. Review the layout of the ICD-9-CM Understand conventions Master the code...
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Transcript of Introduction to ICD-9-CM. Review the layout of the ICD-9-CM Understand conventions Master the code...
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Introduction to ICD-9-CM
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• Review the layout of the ICD-9-CM
• Understand conventions
• Master the code look-up process
• Discuss Official ICD-9-CM Coding Guidelines
Objectives
22
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• International Classification of Disease, Ninth Revision, Clinical Modification–Modified for use in the United States–Describes in detail the patients’ condition
• Uses–Statistical aggregation within populations–Reporting medical necessity to insurers
Introduction to ICD-9-CM
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• Find these features
–Volume 1
–Volume 2
–Coding Guidelines
Look at Your Code Book
44
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Rhinoplasty: nose job
–Repair an injury? –Improve cosmetic appearance?
Was the service covered under the patient’s medical policy? Is the service medically necessary?
Medical Necessity
55
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Rules to make lookup more efficient
ICD-9-CM Coding Conventions
66
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
History (personal) of abuse emotional V15.42 neglect V15.42 physical V15.41 sexual V15.41affective psychosis V11.1alcoholism V11.3 specified as drinking problem (see also abuse, drugs, nondependent) 305.0x
Index: History (Personal)
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
failedconscious sedation V15.80moderate sedation V15.80
falling V15.88family allergy V19.6 anemia V18.2 arteriosclerosis V17.49
Index: History (Personal)
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
failedconscious sedation V15.80moderate sedation V15.80
falling V15.88family allergy V19.6 anemia V18.2 arteriosclerosis V17.49
Index: History (Personal)
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
•NEC Not elsewhere classifiable
“We know what’s wrong, but there isn’t a specific code for it.”
•NOS Not otherwise specified
“We aren’t sure what’s wrong.”
NEC vs. NOS
1010
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
[ ] Brackets: in tabular enclose synonyms or alternate wording
Example: 521.7 Intrinsic posteruptive color changes
Staining [discoloration] of teeth
[ ] Slanted brackets: in index identifies manifestations and indicates sequence.
Example: Diabetes
gangrene 250.7x [785.4]
Punctuation
1111
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
( ) Parentheses: enclose supplementary words that may be present in the description
Example: Blindness (acquired)(congenital)(both eyes)
Punctuation
1212
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
232 Carcinoma in situ of skinpigment cellsmelanoma in situ of skin (172.0-172.9)
232.5 Skin of trunk, except scrotumAnus, marginAxillary foldPerianal skinSkin of:
abdominal wall
Additional Terms
1313
Includes
Excludes
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Diabetes gangrene 250.7x [785.4]
250.7 Diabetes with peripheral circulatory disorders
Use additional code to identify manifestation, as:diabetic
gangrene (785.4)peripheral angiopathy (443.81)
“Use additional code”
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
422.0 Acute myocarditis in diseases classified elsewhere
Code first underlying diseases, as:
myocarditis (acute): influenzal (487.8, 488.09, 488.19) tuberculous (017.9)
“Code first”
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
692.3 Contact dermatitis due to drugs and medicines in contact with skin
Use additional E code to identify drug
Use Additional Code
1616
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
571.5 Cirrhosis of liver without mention of alcohol
Code first, if applicable, viral hepatitis (acute) (chronic) (070.0-070.9)
Use Additional Code, if Applicable
1717
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Single codes:780.52 Insomnia, unspecified780.57 Unspecified sleep apnea
Combination code:780.51 Insomnia with sleep apnea, unspecified
Combination Codes
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• Find the documented diagnosis• Determine the main term• Look up the main term in the Index to
Diseases (Volume 2)• Find the code in the Tabular List (Volume 1)• Read all notes associated with the code
Steps to Look Up a Diagnosis Code
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• What is the:– disease?– illness?– symptom?
• Example: – Acute purulent viral bronchitis– Severe unremitting pain in the right leg
Main Term
2020
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• Ruptured ovarian cyst
• Decubitus ulcer of the right heel
• Congenital absence of ear lobe
• Febrile convulsions
What’s the Main Term?
2121
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• Ruptured ovarian cyst
• Decubitus ulcer of the right heel
• Congenital absence of ear lobe
• Febrile convulsions
What’s the Main Term?
2222
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• Locate term in index• Note code associated with chosen index entry• Lookup code in tabular section• Tabular section–17 chapters–Chapters have 3-digit categories–Categories have 4- or 5-digit subcategories
Code Lookup
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
123 M&Ms1 Chocolate filled
2 Peanut filled1 Red2 Blue3 Yellow4 Green5 Brown9 Unspecified
Specificity
2424
123.2x M&M; Peanut filled
123.11 M&M; Chocolate filled; Red
123.23 M&M; Peanut filled; Yellow
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Scientific Classification
2525
Chapter: Overarching scientific classification: CANDY
Three-digit category within chapter: M&MThree-digit category within chapter: M&M
Four-digit category within chapter: PEANUTFour-digit category within chapter: PEANUT
Five Digit category: REDFive Digit category: RED
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
824 Fracture of ankle 824.0 Medial malleolus, closed824.1 Medial malleolus, open824.2 Lateral malleolus, closed824.3 Lateral malleolus, open824.4 Bimalleolar, closed824.5 Bilmalleolar, open824.6 Trimalleolar, closed824.7 Trimalleolar, open824.8 Unspecified, closed824.9 Unspecified, open
042 AIDS
Ankle fracture vs AIDS
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Scientific Classification
2727
Chapter: Signs and Symptoms788 Symptoms involving urinary
system788 Symptoms involving urinary
system788.3 Urinary incontinence788.3 Urinary incontinence
788.32 Stress incontinence, male788.32 Stress incontinence, male
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Complicated Open Wound of Nasal Sinus
2828
Chapter: Injury and poisoning
873 Other open wound of head873 Other open wound of head
873.3 Nose, complicated873.3 Nose, complicated
873.33 Nasal sinus873.33 Nasal sinus
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Arthritis, arthritic (acute) (chronic) (subacute) 716.9 meaning Osteoarthritis – see OsteoarthrosisNote: Use the following fifth digit subclassifications with categories 711-712, 715-7160 site unspecified1 shoulder region2 upper arm3 forearm4 hand5 pelvic6 lower leg7 ankle and foot8 other specified sites9 multiple sites
Acute Arthritis
2929
5th
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
716.9 Arthropathy, unspecified[0-9] Arthritis (acute) (chronic) (subacute)
Arthropathy (acute) (chronic) (subacute)Articular rheumatism (chronic)Inflammation of joint NOS
Acute Arthritis
3030
5th
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
The following fifth-digit subclassification is for use with category 716; valid digits are in [brackets] under each code. See the list at beginning of chapter for definitions.0 site unspecified1 shoulder region2 upper arm3 forearm4 hand5 pelvis region and thigh6 lower leg7 ankle and foot8 other specified sites9 multiple sites
Acute Arthritis
3131
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• Section 1– A: Coding conventions– B: Coding guidelines– C: Chapter-specific guidelines
ICD-9-CM Official Guidelines for Coding and Reporting
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www.cdc.gov/nchs/data/icd9/icdguide10.pdf
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Reference: I.C.8.a.1.Section I. Conventions, general coding guidelines and
chapter specific guidelines
ICD-9-CM Official Guidelines for Coding and Reporting
3333
www.cdc.gov/nchs/data/icd9/icdguide10.pdf
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Reference: I.C.8.a.1.Section I. Conventions, general coding guidelines and
chapter specific guidelines C. Chapter-Specific Coding Guidelines
ICD-9-CM Official Guidelines for Coding and Reporting
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www.cdc.gov/nchs/data/icd9/icdguide10.pdf
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Reference: I.C.8.a.1.Section I. Conventions, general coding guidelines and
chapter specific guidelines C. Chapter-Specific Coding Guidelines
8. Chapter 8: Diseases of the Respiratory System (460-519)
ICD-9-CM Official Guidelines for Coding and Reporting
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Reference: I.C.8.a.1.Section I. Conventions, general coding guidelines and
chapter specific guidelines C. Chapter-Specific Coding Guidelines
8. Chapter 8: Diseases of the Respiratory System (460-519)
a. Chronic Obstructive Pulmonary Disease [COPD] and Asthma
ICD-9-CM Official Guidelines for Coding and Reporting
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www.cdc.gov/nchs/data/icd9/icdguide10.pdf
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
Reference: I.C.8.a.1.Section I. Conventions, general coding guidelines and
chapter specific guidelines C. Chapter-Specific Coding Guidelines8. Chapter 8: Diseases of the Respiratory System (460-519)a. Chronic Obstructive Pulmonary Disease [COPD] and Asthma1) Conditions that comprise COPD and Asthma
ICD-9-CM Official Guidelines for Coding and Reporting
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• Section 1– A: Coding conventions– B: Coding guidelines– C: Chapter-specific guidelines
• Sections 2 & 3 – Inpatient Only
ICD-9-CM Official Guidelines for Coding and Reporting
3838
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• Section 1– A: Coding conventions– B: Coding guidelines– C: Chapter-specific guidelines
• Sections 2 & 3 – Inpatient Only
• Section 4– UHDDS guidelines for first listed conditions for outpatient
and office visits
ICD-9-CM Official Guidelines for Coding and Reporting
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
1. Always follow instructions within ICD-9-CM that are specific to the code.
2. Follow chapter or section instructions when they do not conflict with the individual code instructions.
3. Follow guidelines when they do not conflict with the chapter, section, or individual code instructions.
ICD-9-CM Guidelines Hierarchy of Rules
4040
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
• Inpatient hospital– “Hospitality:” nursing care, bed, OR, tests, meds
• Payment for level of “hospitality” required
• Outpatient physician
– Surgical procedures and office visits• Payment for services rendered
ICD-9-CM Guidelines
4141
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
1. Use of Both Alphabetic Index and Tabular List
2. Locate each term in the Alphabetic Index and Tabular List
3. Level of Detail in Coding4. Code or codes from 001.0 through V91.995. Selection of codes 001.0 through 999.9
General Coding Guidelines:Section I. B.
4242
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
6. Signs and symptoms7. Conditions that are an integral part of the
disease process8. Conditions that are not an integral part of
the disease process9. Multiple coding for a single condition
General Coding Guidelines:Section I. B.
4343
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
10.Acute and Chronic conditions– Acute Bronchitis 466.0– Chronic Bronchitis 491.9– Code both, acute first, then chronic 466.0, 491.9
11.Combination code– Right bundle branch block 426.4– Left bundle branch block 426.3– Other bilateral bundle branch block 426.53– Code only the bilateral bundle branch block 426.53
General Coding Guidelines:Section I. B.
4444
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
12.Late Effects– Code first the residual condition of the late effect– Code second the cause for the late effect (905.0-909.9)
13. Impending or threatened conditions14.Reporting same diagnosis more than once– Right kidney infection 590.9– Left kidney infection 590.9– Report code only once as 590.9
General Coding Guidelines:Section I. B.
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Introduction to ICD-9-CMIntroduction to ICD-9-CM
15.Admissions/encounters for rehabilitation– V57.1 Other physical therapy– 729.2 Neuralgia, neuritis, and radiculitis
16.Documentation of BMI (Body Mass Index) and pressure ulcer stages
17.Syndromes
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A. Selection of first-listed condition1. Outpatient surgery2. Observation stay
Exception: Admit for surgery, develops complication, sent to observation:– Reason for surgery is coded first– Complication for observation is coded second
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B. Codes from 001.0 through V91.99
C. Accurate reporting of ICD-9-CM diagnosis codes
D. Selection of codes 001.0 through 999.9
E. Codes that describe symptoms and signs
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F. Encounters for circumstances other than a disease or injury
G. Encounters for circumstances other than a disease or injury
Level of detail in coding
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H. ICD-9-CM code for the diagnosis, condition, problem, or other reason for encounter/visit
I. Uncertain diagnosisJ. Chronic diseasesK. Code all documented conditions that co-
exist
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L. Patients receiving diagnostic services onlyM. Patients receiving therapeutic services only– Exception: primary reason for visit is
chemotherapy, radiation therapy, or rehabilitation
N. Patients receiving preoperative evaluations only
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O. Ambulatory Surgery
P. Routine outpatient prenatal visits
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The End