Advanced ICD-10-CM/PCS
Coding for OB/Pregnancy
October 14, 2014
Karen Feltner, RHIA, CCS
Plan for Today
What are we discussing today?
•
What is different in ICD-10-CM
for pregnancy?
•
What about ICD-10-PCS for obstetric
procedures?
Latest on Implementation
• Another delay was implemented with
passage of H.R. 4302, Protecting Access to Medicare Act of 2014, mainly creates a temporary “fix” to the Medicare
sustainable growth rate (SGR) on March 31, 2014. This act prohibits implementation before October 1, 2015
• This delay was not expected by CMS as
evidenced by the announcement of no further delay in February 2014.
How Are They Similar?
• ICD-9-CM and ICD-10-CM are alpha numeric.– ICD-9-CM uses alpha characters V and E as first character in some codes
• Characters 2-5 are numeric
– ICD-10-CM uses alpha and numeric characters.
• The first character is an alpha character.
• Character 2 is a numeric character.
• Characters 3 through 7 may be alpha or numeric.
• The letter U is not used in ICD-10-CM
– A decimal is used after the third character for both coding systems.
How They are Similar
• Conventions common to both systems– Boldface type, italicized type, includes notes, inclusion notes
– Abbreviations
• NEC -Not Elsewhere Classifiable
• NOS-Not Otherwise Specified
• Instructional notes
– See notes-mandatory cross references
• Must look elsewhere for correct code
– See also notes-recommended reference to alternate terms
• More specific code may be found at alternate term
– Code First/Use Additional Code
– Code Also
Structure of ICD-10-CM Codes
• ICD-10-CM codes may consist of up to
seven characters, with the seventh character extensions representing visit encounter or sequelae for injuries and external causes.
What’s Different?
•
Two types of Excludes notes
–Excludes1 notes, Excludes2 notes
•
Codes may be incomplete in Index
–How do we identify an incomplete code in the ICD-10-CM index?
• Under main term Pregnancy, complicated by
abnormal, abnormality cervix O34.4-
causing obstructed labor O65.5
Placeholder Character - X
• The 7th character is required for some
codes.
• No 7th character = invalid code
• What happens if the code does not have 6
characters and a 7th character is required
• We now have a placeholder character- X
used to fill the code as needed
• The X is used to fill the code so the 7th
What is the same?
•
Main terms
–
Pregnancy
–
Delivery
–
Outcome of Delivery
–
Puerperal, puerperium
•
Postpartum period is still 6
weeks after delivery.
•
Definition of Normal
Delivery O80 is the same
Outcome of Delivery
•
This is the same in ICD-10-CM
•
Index term-
–
Outcome of Delivery
• Number of babies • Liveborn or stillborn
• If multiples, status of siblings-all liveborn, all stillborn or combination of both
Normal Delivery O80
•
One baby liveborn
•
No assistance, can be with or without
episiotomy-no forceps or version
•
Cephalic presentation (LOA, ROA, ROP,
LOP, vertex)
•
Any antepartum conditions have
resolved
•
No postpartum complications during
delivery encounter
Abortion Definition
• ICD-10-CM: The expulsion or extraction of all or part of the placenta or membrane with an estimated gestation of less than 20 completed weeks is considered an abortive outcome (abortion).
• ICD-9-CM: The expulsion or extraction of all or part of the placenta with or without an identifiable fetus weighing less than 500 grams or with less than an estimated 22 weeks gestational age.
•
New codes to be reported
– Number of weeks gestation– Codes may require identification of trimester of when complication began
– Some codes require identification of which fetus is affected by a condition
13
Pregnancy in ICD-10-CM
Weeks Gestation Code
• Chapter 15 Pregnancy, childbirth and the puerperium (O00-O9A)
–Use additional code from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy
– Index term, • Pregnancy,
– Weeks of gestation
» Individual code for weeks 8 – 42 » Less than 8 weeks Z3A.01 » Greater than 42 weeks Z3A.49
» All pregnancy codes-including abortion, missed abortion, ectopic pregnancy and abnormal products of conception.
Trimester
•
Trimesters are counted from the first
day of the last menstrual period
.
They are defined as follows:
–1st trimester- less than 14 weeks 0 days
–2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
–3rd trimester- 28 weeks 0 days until delivery
In addition to Trimester
•
Codes may also have description that
state
–In childbirth –In puerperium
Selection of Trimester
• Code selection is based on the provider’s documentation of gestational age (weeks)
–The trimester character is chosen based on the trimester at the time of the
admission/encounter should be assigned. –If a patient is admitted during one trimester
and continues into another trimester,
trimester character is chosen based on when condition develops.
–If patient delivers during the stay AND there is an “in childbirth” option for the code than code is selected.
Example of OB Code
• Example of ICD-10-CM OB Code
– O24.311 Unspecified pre-existing diabetes mellitus in pregnancy, first trimester
– O24.312 Unspecified pre-existing diabetes mellitus in pregnancy, second trimester
– O24.313 Unspecified pre-existing diabetes mellitus in pregnancy, third trimester
– O24.319 Unspecified pre-existing diabetes mellitus in pregnancy, unspecified trimester
– O24.32 Unspecified pre-existing diabetes mellitus in childbirth
– O24.33 Unspecified pre-existing diabetes mellitus in the puerperium
More Examples of OB Code
• More Examples of ICD-10-CM OB Code –O65.0 Obstructed labor due to deformed
pelvis
–O21.0 Mild hyperemesis gravidarum –O44.10 Placenta previa with hemorrhage,
unspecified trimester
–O44.11 Placenta previa with hemorrhage, first trimester
–O44.12 Placenta previa with hemorrhage, second trimester
–O44.13 Placenta previa with hemorrhage, third trimester
• From the Tabular List, specifically code O60.1 One of the following 7th characters is to be assigned to each code under subcategory O60.1. 7th character 0 is for single gestations and multiple gestations where the fetus is
unspecified. 7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from subcategory O60.1 that has a 7th character of 1 through 9.
0 not applicable or unspecified 1 fetus 1
2 fetus 2 3 fetus 3 4 fetus 4 5 fetus 5 9 other fetus
– Fetus A designation would equal fetus 1, Fetus B
designation would equal fetus 2 per Coding Clinic
Which Fetus is Affected?
• O60.1 Preterm labor with preterm delivery
–O60.12 Preterm labor second trimester with preterm delivery second trimester
–O60.12X0 would be code for single gestation
–O60.12X1 would be code for multiple gestation and condition affecting fetus 1
–O60.12X2 would be code for multiple gestation pregnancy and condition affecting fetus 2
• Multiple codes may be required if multiple gestations and all fetus affected by
condition.
Patient is at 20 weeks gestation with uncomplicated twin pregnancy, monochorionic/monoamniotic
• Index Entry Pregnancy, twin O30.00- conjoined O30.02-
dichorionic/diamniotic(two placenta, two amniotic sacs) O30.04-
monochorionic/diamniotic(one placenta, two amniotic sacs) O30.03-
monochorionic/monoamniotic(one placenta, one amniotic sac) O30.01-
unable to determine number of placenta and number of amniotic sacs O30.09-
unspecified number of placenta and unspecified number of amniotic sacs O30.00-
22
• O30.011 Twin pregnancy,
monochorionic/monoamniotic, first trimester
• O30.012 Twin pregnancy,
monochorionic/monoamniotic, second trimester
• O30.013 Twin pregnancy,
monochorionic/monoamniotic, third trimester
• O30.019 Twin pregnancy,
monochorionic/monoamniotic unspecified trimester
• Codes to be reported for diagnosis of twin pregnancy, monochorionic/monoamniotic at 20 weeks gestation O30.012, Z3A.20
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Tabular Entry
Maternal Diseases
•
This would include any conditions the
mother may have that were present
prior to pregnancy
•
Many conditions require an additional
code to provide specification
–O22.2 or O22.3 –O24
–O99
•
There are “use additional code” notes in
the Tabular List
• Obstructed labor in ICD-10-CM uses combination codes for reporting
– Some still require two codes
• Some of the codes require a 7th character to
identify fetus affected
• Obstructed labor due to brow presentation
– O64.3XX0 code would represented singleton pregnancy with obstructed labor due to brow presentation
• Obstructed labor due to large fetus
– O66.2 code would represented obstructed labor due to large fetus
25
Pregnancy and Combination Codes
• Conventions of the classification system require seven CHARACTERS in each code.
• All numbers 0-9 are used as are all alphabetic characters EXCEPT the letter I and the letter O
26
ICD-10-PCS
1 2 3 4 5 6 7
Section
Body
System Root Operation
Body Part
Approach
Device
ICD-10-PCS and Obstetrics
•
Medical Surgical Section
–Begin with a 0 –31 root operations –31 body systems
•
Obstetric Section
–Begin with a 1 –12 root operations –1 body system –3 body parts
• Coding Guideline C1. Procedures performed on the products of conception are coded to the Obstetrics section. Procedures performed on the pregnant female other than the products of conception are coded to the appropriate root operation in the Medical and Surgical section.
– Episiotomy is coded in Medical Surgical section
– Forceps delivery is coded in Obstetrics section
– Tubal ligation is coded in Mecical Surgical section
– D&C for retained placenta is coded in Obstetrics section
Root Operations
•
There are two root operations specific to
Obstetrics section
–Abortion: Artificial terminating a pregnancy –Delivery: Assisting products of conception
from the genital canal
•
Other root operations have same
definition as in Medical-Surgical section
–Remember body part is Products of Conception when applying definition
Vaginal Delivery
•
Manual Assisted Delivery
–ICD-9-CM: 73.59
–ICD-10-PCS: 10E0XZZ
•
Cesarean Delivery
–ICD-9-CM: Low transverse c-section 74.1
–ICD-10-PCS: 10D00Z1 (low cervical)
• Root operation Extraction
–Forceps delivery-qualifier identifies type of forceps 10D07Z3 (low forceps)
–D&C for retained products of conception 10D17ZZ
• Perineal lacerations during delivery
–First-degree tears involve damage to the fourchette and vaginal mucosa, and underlying muscles are exposed but not torn.
–Second-degree tears can include the posterior vaginal walls, pelvic floor, and perineal muscles, but the anal sphincter is intact.
–Third-degree tears extend to the anal sphincter and can include the rectovaginal septum, but the rectal mucosa is intact.
–Fourth-degree tears involve the rectal and/or anal mucosa.
31
Coding Repair of Delivery Injuries
• The ICD-10-PCS codes will vary
–First degree tear-Repair of perineum 0WQN0ZZ
–Resulting DRG is still in the OB DRGs
–Second degree tear-?? Can be tear of posterior vaginal wall, pelvic floor or perineal muscle-how do we code this
• Documentation frequently only states Repair 2nd
degree tear but specific site not identified?
–Vaginal Wall = 0UQG0ZZ (Female Reproductive system)
–Perineal Muscle = 0KQM0ZZ (Muscle body system)
–Pelvic floor= repair perineum 0WQN0ZZ
• The ICD-10-PCS codes will vary
– Third degree tear- Involves anal sphincter 0DQR0ZZ
• May send to non-OB DRG 983 Extensive OR Procedure unrelated to Principal diagnosis w/o CC/MCC
– Fourth degree tear-Involves rectal and/or anal mucosa
– Documentation frequently only states Repair 4th
degree tear but specific site not identified?
–Rectum= 0DQP0ZZ
–Anus = 0DQQ0ZZ
33
Coding Perineal Lacerations
• From the ICD-10-CM and ICD-10-PCS
Coding Handbook by Nelly Leon-Chisen, RHIA
When more than one degree is mentioned, only the code for the highest degree is assigned. The appropriate surgical repair code is assigned depending on the tissue repaired (e.g., for open repair of the vaginal wall, assign code 0UQG0ZZ) with the body part specifying the deepest layer repaired
34
• Documentation for ancillary OB procedures are not always well documented by physician
– Artificial rupture of membranes
– Fetal monitoring
– Methods of induction (Some are coded in Introduction section)
• Pitocin induction 3E033VJ
• Cervidil induction3E0P7GC
• AROM 10907ZC
• Cervical dilatation 0U7C7ZZ
35
Obstetrics
Coding Example #1
14 year old primigravida presents to the Emergency Department at 16 weeks
gestation with vomiting and dehydration. Final diagnosis: Young patient with
hyperemesis gravidarum with dehydration
– O21.1 Hyperemesis gravidarum with metabolic disturbance
– E86.0 Dehydration
– O09.612 Young primigravida, second trimester
Coding Example #2
• 30 year old G2P1 female at 39 weeks
gestation presents in labor. Patient progressed well and delivered vaginally over an intact perineum. Single liveborn female. AROM performed.
–O80 Normal Delivery
–Z3A.39 Gestation weeks
–Z37.0 Outcome of Delivery
–10907ZC AROM (drainage)
–10E0XZZ Manually assisted delivery
Coding Example #3
•
38 year old primigravida with 33 week
twin, monoamniotic/monochorionic
gestation presents in labor. She
undergoes low cesarean section due to
maternal exhaustation. Cord around
neck baby A-no compression. Both male
infants liveborn.
Coding Example #3 Answers
• O60.14X1 Preterm labor & delivery-baby 1
• O60.14X2 Preterm labor & delivery-baby 2
• O75.81 Maternal exhaustion
• O69.81X1 Cord around neck w/o
compression – baby 1
• O30.13 Twin gestation, mono/mono
• O09.513 38 year old primigravida
• Z37.2 Outcome of delivery, both liveborn
• Z3A.33 Weeks gestation
• 10D00Z1-Low cervical C-section
Coding Example #4
•
25 year old presents to Emergency
Department, three weeks after normal
vaginal delivery with severe pain and
swelling of the right breast. She is
breastfeeding her infant. She is febrile.
•
Discharge diagnosis: Postpartum mastitis
Coding example #5
• 20 year old presents with mild vaginal bleeding. She reports she had positive pregnancy test & was 10 weeks along. Exam reveals products of conception in the cervical os. She is taken to surgery and undergoes a D&C for retained products of conception after spontaneous abortion.
–O03.4 Incomplete spontaneous abortion
–Z3A.10
–10D17ZZ (extraction-retained products of conception)